TASK 1 Writing formulas of ionic compounds. TASK 2 Writing formulas 1. TASK 3 Writing formulas 2. TASK 4 Writing balanced equations 1
|
|
|
- Louise Marsha McDowell
- 5 years ago
- Views:
Transcription
1 TASK 1 Writing formulas of ionic compounds 1 AgBr 2 Na 2CO 3 3 K 2O 4 Fe 2O 3 5 CrCl 3 6 Ca(OH) 2 7 Al(NO 3) 3 8 Na 2SO 4 9 PbO 10 Na 3PO 4 11 Zn(HCO 3) 2 12 (NH 4) 2SO 4 13 Ga(OH) 3 14 SrSe 15 RaSO 4 16 Na 3N TASK 2 Writing formulas 1 1 PbO 2 2 Cu 3 Na 4 NH 4Cl 5 NH 3 6 S 8 7 H 2SO 4 8 Ne 9 SiO 2 10 Si 11 Ba(OH) 2 12 SnCl 4 13 AgNO 3 14 I 2 15 Ni 16 H 2S 17 TiO 2 18 Pb 19 SrSO 4 20 Li TASK 3 Writing formulas 2 1 Ag 2CO 3 2 Au 3 PtF 2 4 HNO 3 5 NH 3 6 SiH 4 7 P 4 8 C 9 V 2O 5 10 Co(OH) 2 11 Ca(OH) 2 12 NH 4Cl 13 HCl 14 F 2 15 Si 16 Ca 3(PO 4) 2 17 Rb 18 GeO 2 19 MgAt 2 20 Ar TASK 4 Writing balanced equations 1 1 a Mg + 2 HNO 3 Mg(NO 3) 2 + H 2 b CuCl NaOH Cu(OH) NaCl c 2 SO 2 + O 2 2 SO 3 d C 4H ½ O 2 4 CO H 2O or 2 C 4H O 2 8 CO H 2O 2 a 4 Na + O 2 2 Na 2O b 2 Al + 3 Cl 2 2 AlCl 3 c Ca + 2 HCl CaCl 2 + H 2 d 2 NH 3 + H 2SO 4 (NH 4) 2SO Jul-12 Chemsheets AS 008 1
2 TASK 5 Writing balanced equations Al + 3 O 2 2 Al 2O 3 2 C 6H ½ O 2 6 CO H 2O or 2 C 6H O 2 12 CO H 2O 3 CH 3CH 2SH + 4½ O 2 2 CO 2 + SO H 2O or 2 CH 3CH 2SH + 9 O 2 4 CO SO H 2O 4 2 Li + 2 H 2O 2 LiOH + H 2 5 CaCO HNO 3 Ca(NO 3) 2 + H 2O + CO 2 6 Li 2CO 3 Li 2O + CO 2 7 NH 3 + HNO 3 NH 4NO 3 8 K 2O + H 2SO 4 K 2SO 4 + H 2O 9 Ca(OH) HCl CaCl H 2O 10 3 Zn + 2 H 3PO 4 Zn 3(PO 4) H NaHCO 3 + H 2SO 4 Na 2SO 4 + H 2O + CO KOH + H 2SO 4 K 2SO H 2O TASK 6 Ionic equations 1 HCl, LiOH, 1:1; H 2SO 4, NaHCO 3, 1:2; HNO 3, NH 3, 1:1; H 2SO 4, K 2CO 3, 1:1, HNO 3, Sr(OH) 2, 2:1 2 a H + + OH - H 2O b Ag + + I - AgI c 2 H + + CO 3 2- H 2O + CO 2 d Ca OH - Ca(OH) 2 e NH 3 + H + NH 4 + f H + + HCO 3 - H 2O + CO 2 g Ca 2+ + SO 4 2- CaSO 4 h Pb Cl - PbCl 2 i H + + OH - H 2O TASK 7 Significant figures & standard form 1 a b c d 6.00 e f a b c 13.7 d 30.0 e f a b c d 534 e f a 1.64 x 10-4 b 5.24 x 10-2 c 1.5 x 10-8 d 3.45 x 10 4 e 6.2 x 10-1 f 8.7 x a b 6.14 x 10-5 c 4.00 x 10 8 d 2400 e f 8.00 x 10-7 TASK 8 Moles 1 a 2.96 b 50.3 c d e a 355 g b 20.4 g c 1.08 g d g e 85.8 g 3 a 0.25 b 0.25 c a b 0.10 c a x g b x g c x g TASK 9 What equations mean 1 12 mol Na + 3 mol O 2 6 mol Na 2O; 0.1 mol Na mol O mol Na 2O 2 5 mol Al mol Cl 2 5 mol AlCl 3; 0.1 mol Al mol Cl mol AlCl mol C 4H mol O 2 2 mol CO mol H 2O; 20 mol C 4H mol O 2 80 mol CO mol H 2O mol NH mol O mol N mol H 2O; 10 mol NH mol O 2 5 mol N mol H 2O 07-Jul-12 Chemsheets AS 008 2
3 TASK 10 Reacting mass calculations g g g g g g g g g g g g g g 07-Jul-12 Chemsheets AS 008 3
4 07-Jul-12 Chemsheets AS 008 4
5 TASK 11 Reacting mass calculations 2 1 a 2 mol NH 3 b 6 mol NH 3 c 1.33 mol NH 3 d 1.0 mol NH 3 e 4 mol NH 3 2 a 3 mol SO 3 b 3 mol SO 3 c 0.04 mol SO 3 d 0.8 mol SO 3 e 2 mol SO g g g g g g g 07-Jul-12 Chemsheets AS 008 5
6 07-Jul-12 Chemsheets AS 008 6
7 CHALLENGE 1 1 NaHCO 3 = 3.51 g, Na 2CO g 2 CaCO 3 = 40.3%, MgCO 3 = 59.7% 3 C 4H % 07-Jul-12 Chemsheets AS 008 7
8 TASK 12 Percentage yield 1 a 120 g b 74.9% c reversible, product lost on isolation, other reactions take place 2 a g b 92.3% 3 a 510 g b 30.0% 4 a 25.2 g b 79.4% 5 a 529 g b 94.4% 6 a 330 g b 90.8% 7 a 2.40 g b 88.4% 07-Jul-12 Chemsheets AS 008 8
9 07-Jul-12 Chemsheets AS 008 9
10 TASK 13 Atom economy % 2 1.5% % % 5 100% % 7 a 320 g b 87.5% c 29.5% d % yield compares the amount produced compared to the amount you should get, atom economy is the proportion of the mass of all the products that is the desired product 07-Jul-12 Chemsheets AS
11 TASK 14 Ideal gas equation 1 a 473 K b Pa c 50 x 10-6 m 3 d 223 K e Pa f 3.2 x 10-3 m x 10-3 m Pa K m g m m K Pa 07-Jul-12 Chemsheets AS
12 07-Jul-12 Chemsheets AS
13 TASK 15 Reacting gas volumes 1 a O 2 2 dm 3, CO 2 1 dm 3 b O cm 3, CO 2 80 cm 3 c O cm 3, CO cm 3 d O cm 3, CO cm 3 q 2 20 cm 3 HBr left at end cm 3 O 2, 100 cm 3 CO 2, total 400 cm 3 gas at end 4 4 dm 3 O 2, 4 dm 3 H 2O, 4 dm 3 SO 2, total 12 dm 3 gas 07-Jul-12 Chemsheets AS
14 CHALLENGE : 3.11, 40.9 g 3 NS 4 C 2H ms -1 6 C 3H Jul-12 Chemsheets AS
15 07-Jul-12 Chemsheets AS
16 Calculations CHECK-UP 1 a Zn(NO 3) 2 b Pb c Cr 2O 3 d (NH 4) 2SO 4 e P 4 f N 2 g Ba(OH) 2 h Al 2(SO 4) 3 2 H 2SO 4, KOH, 1:2; HCl, KHCO 3, 1:1; HNO 3, NH 3, 1:1; HCl, ZnCO 3, 2:1 3 a H + + OH - H 2O b Ba 2+ + SO 2-4 BaSO 4 c H NH 3 NH 4 d H + + HCO - 3 H 2O + CO 2 4 a average mass of an atom, relative to 1/12 th mass of 12 C atom b it is the agreed standard c mixture of other isotopes 5 a H 2, NH 3 = b H 2, NH 3 = 3.33 c N 2, NH 3 = 20 d H 2, NH 3 = x 10-4 m x a volume of CO 2 = 57.1 cm 3, total = cm 3 b volume of CO 2 = 200 cm 3, total = 350 cm 3 c volume of CO 2 = cm 3, total = cm x 10-3 m m 3 11 a 40, 60 b 40, 20 c 5.84, g g 14 a 1250 g b 96% c reversible, product lost on isolation, other reactions d 100% 15 a 529 g b 94.5% c 52.9% a 0.05, 0.05, 1.22 x 10-3 m 3, 4.07 g b 1.30 g, 2.77 g 07-Jul-12 Chemsheets AS
17 07-Jul-12 Chemsheets AS
18 07-Jul-12 Chemsheets AS
19 07-Jul-12 Chemsheets AS
20 07-Jul-12 Chemsheets AS
21 07-Jul-12 Chemsheets AS
22 TASK 16 Solution calculations 1 a 0.1 b 250 c a 0.2 mol dm -3, 7.3 g dm -3 b 2.5 mol dm -3, g dm -3 c 2.1 mol dm -3, 84.0 g dm -3 3 a 0.05 dm 3 b dm mol dm -3, 4.61 g dm mol dm -3, 3.01 g dm dm mol dm -3, 71.0 g dm g dm A r = 39.1, K % 07-Jul-12 Chemsheets AS
23 07-Jul-12 Chemsheets AS
24 07-Jul-12 Chemsheets AS
25 TASK 17 Back titration calculations % % mol, 4.22 g g g 07-Jul-12 Chemsheets AS
26 07-Jul-12 Chemsheets AS
27 CHALLENGE % 2 A Si 2OCl Jul-12 Chemsheets AS
28 TASK 18 Empirical & molecular formulas 1 a CH 3 b P 2O 3 c SO 2 d CH 2 e CH 2O f C 2H 7N g B 3H 5 h C 12H 22O 11 2 a N 2H 4 b C 4H 10 c C 5H 10 d PH 3 e C 6H 6 f C 3H 6 3 a 3:2 b 1:2 c 5:1 d 2:5 e 3:4 f 5:3 g 4:5 h 4:7 4 a CaBr 2 b Na 2S 2O 3 c C 2H 7N d CO 2 e NO 2 5 FeCl 3 6 K 2SO 4 7 P 2O 3, P 4O 6 8 CH 2O, C 2H 4O 2 9 C 5H 10O, C 5H 10O 10 x = 4, y = Jul-12 Chemsheets AS
29 07-Jul-12 Chemsheets AS
30 Calculation Allsorts 1 C 5H 11NO 2 C 11H 14O 2, C 11H 14O g g dm mol dm % % Al + 6 NH 4ClO 4 3 N H 2O + 6 HCl + 5 Al 2O Jul-12 Chemsheets AS
31 07-Jul-12 Chemsheets AS
AMOUNT OF SUBSTANCE. TASK 1 Writing formulas of ionic compounds. TASK 2 Writing formulas 1. TASK 3 Writing formulas 2
AMOUNT OF SUBSTANCE TASK 1 Writing formulas of ionic compounds 1 AgBr 2 Na 2CO 3 3 K 2O 4 Fe 2O 3 5 CrCl 3 6 Ca(OH) 2 7 Al(NO 3) 3 8 Na 2SO 4 9 PbO 10 Na 3PO 4 11 Zn(HCO 3) 2 12 (NH 4) 2SO 4 13 Ga(OH)
Unit 5: Chemical Equations and Reactions & Stoichiometry
pg. 10 Unit 5: Chemical Equations and Reactions & Stoichiometry Chapter 8: Chemical Equations and Reactions 8.1: Describing Chemical Reactions Selected Chemistry Assignment Answers (Section Review on pg.
CHEM 12 Unit 3 Review package (solubility)
CHEM 12 Unit 3 Review package (solubility) 1. Which of the following combinations would form an ionic solid? A. Metalloid - metal B. Metal non-metal C. Metalloid metalloid D. Non-metal non-metal 2. Which
1) What is the volume of a tank that can hold Kg of methanol whose density is 0.788g/cm 3?
1) Convert the following 1) 125 g to Kg 6) 26.9 dm 3 to cm 3 11) 1.8µL to cm 3 16) 4.8 lb to Kg 21) 23 F to K 2) 21.3 Km to cm 7) 18.2 ml to cm 3 12) 2.45 L to µm 3 17) 1.2 m to inches 22) 180 ºC to K
HW 7 KEY!! Chap. 7, #'s 11, 12, odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones)
HW 7 KEY!! Chap. 7, #'s 11, 12, 15-21 odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, 72-75 all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones) 11) NOTE: I used the solubility rules that I have provided
Chapter 4: 11, 15, 18, 20, 22, 24, 30, 33, 36, 40, 42, 43, 46, 48, 50, 56, 60, 62, 64, 75, 82, 94 + C 2 H 3 O 2
Chapter : 11, 15, 18, 0,,, 0,, 6, 0,,, 6, 8, 50, 56, 60, 6, 6, 5, 8, 9 11. a. NaBr Na Br b. MgCl Mg Cl c. Al(NO ) Al NO d. (NH ) SO NH SO e. NaOH Na OH f. FeSO Fe SO g. KMnO K MnO h. HClO H ClO i. NH C
Solubility Multiple Choice. January Which of the following units could be used to describe solubility? A. g/s B. g/l C. M/L D.
Solubility Multiple Choice January 1999 14. Which of the following units could be used to describe solubility? A. g/s B. g/l C. M/L D. mol/s 15. Consider the following anions: When 10.0mL of 0.20M Pb(NO3)
15.0 g Fe O 2 mol Fe 55.8 g mol Fe = g
CHAPTER Practice Questions.1 1 Mg, O, H and Cl (on each side).. BaCl (aq) + Al (SO ) (aq) BaSO (s) + AlCl (aq).5 0.15 mol 106 g mol 1 = 1. g 15.0 g Fe O mol Fe 55.8 g mol Fe = 10.9 g 1 159.7 g mol FeO
CHAPTER Describing Chemical Reactions Reactants Products. New substances produced The arrow means yields TYPES OF EQUATIONS.
CHAPTER 11 Chemical Reactions 11.1 Describing Chemical Reactions Reactants Products New substances produced The arrow means yields Where do Chemical Reactions occur? Everywhere!!! In living organisms In
Chapter 4: 11, 16, 18, 20, 22, 24, 30, 34, 36, 40, 42, 44, 46, 48, 50, 56, 60, 62, 64, 76, 82, 94 + C 2 H 3 O 2
Chapter : 11, 16, 18, 0,,, 0,, 6, 0,,, 6, 8, 50, 56, 60, 6, 6, 76, 8, 9 11. a. NaBr Na Br b. MgCl Mg Cl c. Al(NO ) Al NO d. (NH ) SO NH SO e. HI H I f. FeSO Fe SO g. KMnO K MnO h. HClO H ClO i. NH C H
Chemistry 12 Provincial Exam Workbook Unit 03: Solubility Equilibrium. Multiple Choice Questions
R. Janssen, MSEC Chemistry 1 Provincial Workbook (Unit 0), P 1 / 7 Chemistry 1 Provincial Exam Workbook Unit 0: Solubility Equilibrium Multiple Choice Questions 1. Which of the following would be true
Review of Chemistry 11
Review of Chemistry 11 HCl C 3 H 8 SO 2 NH 4 Cl KOH H 2 SO 4 H 2 O AgNO 3 PbSO 4 H 3 PO 4 Ca(OH) 2 Al(OH) 3 P 2 O 5 Ba(OH) 2 CH 3 COOH 1. Classify the above as ionic or covalent by making two lists. Describe
Chapter 4 Suggested end-of-chapter problems with solutions
Chapter 4 Suggested end-of-chapter problems with solutions a. 5.6 g NaHCO 1 mol NaHCO 84.01 g NaHCO = 6.69 10 mol NaHCO M = 6.69 10 mol 50.0 m 1000 m = 0.677 M NaHCO b. 0.1846 g K Cr O 7 1 mol K 94.0 g
Stoichiometry Problem Set 1 page g MgO g Al g Sr 3 (PO 4 ) M NaOH 5. a g Ni 5. b.
Stoichiometry (Baverstock/Kailley) 2006 1 Stoichiometry Problem Set 1 page 1 1. 4.15 g MgO 2. 26 g Al 3. 1.70 g Sr 3 (PO 4 ) 2 4. 0.628 M NaOH 5. a. 91.4 g Ni 5. b. 106 g Ni 3 N 2 6. a. 12.3 L O 2 6. b.
BALANCING EQUATIONS NOTES
BALANCING EQUATIONS NOTES WHY DO WE NEED TO BALANCE CHEMICAL EQUATIONS? The LAW OF CONSERVATION OF MASS says that matter cannot be created or destroyed. In other words, you cannot end up with any more
Homework #3 Chapter 4 Types of Chemical Reactions and Solution Stoichiometry
Homework #3 Chapter 4 Types of Chemical Reactions and Solution Stoichiometry 13. Determine the concentrations of the solutions Solution A 4 particles 1.0 L Solution B 6 paticles 4.0 L Solution C 4 particles
UNIT III: SOLUBILITY EQUILIBRIUM YEAR END REVIEW (Chemistry 12)
I. Multiple Choice UNIT III: SOLUBILITY EQUILIBRIUM YEAR END REVIEW (Chemistry 12) 1) Which one of the following would form an ionic solution when dissolved in water? A. I 2 C. Ca(NO 3 ) 2 B. CH 3 OH D.
Solubility Guidelines for Compounds in Aqueous Solutions
Solubility Guidelines for Compounds in Aqueous Solutions It is very important that you know these guidelines and how to apply them in reactions. 1) Common inorganic acids and low-molecularweight organic
Practice Worksheet - Answer Key. Solubility #1 (KEY)
Practice Worksheet - Answer Key Solubility #1 (KEY) 1 Indicate whether the following compounds are ionic or covalent a) NaCl ionic f) Sr(OH) 2 ionic b) CaBr 2 ionic g) MgCO 3 ionic c) SO 2 covalent h)
**The partially (-) oxygen pulls apart and surrounds the (+) cation. The partially (+) hydrogen pulls apart and surrounds the (-) anion.
#19 Notes Unit 3: Reactions in Solutions Ch. Reactions in Solutions I. Solvation -the act of dissolving (solute (salt) dissolves in the solvent (water)) Hydration: dissolving in water, the universal solvent.
AP Chapter 4 Study Questions
Class: Date: AP Chapter 4 Study Questions True/False Indicate whether the statement is true or false. 1. Ca(OH) 2 is a strong base. 2. The compound HClO 4 is a weak acid. 4. The compound NH 4 Cl is a weak
CHAPTER 1 QUANTITATIVE CHEMISTRY
Page 4 Ex 4 (a) element; (b) mixture; (c) compound; (d) element; (e) compound 5. (a) mixture; (b) compound; (c) mixture; (d) element; (e) compound. Page 5 Ex 1.1 3. C 4. D 5. C 6. D 7. a) 0.20 b) 1.2 10
Balancing Equations Notes
. Unit 6 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
Reaction Writing Sheet #1 Key
Reaction Writing Sheet #1 Key Write and balance each of the following reactions and indicate the reaction type(s) present: 1. zinc + sulfur zinc sulfide 8 Zn (s) + S 8 (s) 8 ZnS (s) synthesis 2. potassium
SOLUBILITY REVIEW QUESTIONS
Solubility Problem Set 1 SOLUBILITY REVIEW QUESTIONS 1. What is the solubility of calcium sulphate in M, g/l, and g/100 ml? 2. What is the solubility of silver chromate? In a saturated solution of silver
Page 1. Exam 2 Review Summer A 2002 MULTIPLE CHOICE. 1. Consider the following reaction: CaCO (s) + HCl(aq) CaCl (aq) + CO (g) + H O(l)
Page 1 MULTIPLE CHOICE 1. Consider the following reaction: CaCO (s) + HCl(aq) CaCl (aq) + CO (g) + H O(l) The coefficient of HCl(aq) in the balanced reaction is. a) 1 b) 2 c) 3 d) 4 e) 0 2. Given the information
Chemistry 1A3 Instructor: R.S. Dumont Supplementary Problem Solutions Types of Reactions
Chemistry 1A3 Instructor: R.S. Dumont Supplementary Problem Solutions Types of Reactions 1. (a) 2 Ca(s) + O 2 (g) 2CaO(s) (b) 2 Na(s) + Cl 2 (g) 2NaCl(s) (c) 16 Ga(s) + 3 S 8 (s) 8Ga 2 S 3 (s) (d) 3 Ba(s)
Chem 12 Practice Solubility Test
Chem 12 Practice Solubility Test 1. Which combination of factors will affect the rate of the following reaction? Zn (s) + 2HCl ZnCl 2 + H 2(g) A. Temperature and surface area only B. Temperature and concentration
TYPES OF CHEMICAL REACTIONS AND SOLUTION STOICHIOMETRY
CHAPTER TYPES OF CHEMICA REACTIONS AND SOUTION STOICHIOMETRY Questions 17. a. Polarity is a term applied to covalent compounds. Polar covalent compounds have an unequal sharing of electrons in bonds that
Broughton High School
Name: Section: Chapter 21 Chemical Reactions Vocabulary Words 1. Balanced Chemical Reactions 2. Catalyst Broughton High School 3. Chemical Equation 4. Chemical Reaction 5. Coefficient 6. Combustion Reaction
****************************************************************************
**************************************************************************** To quickly summarize: 1. The solubility of a compound is decreased when an ion which is the same as one of the ions in the compound
Solubility & Net Ionic review
Solubility & Net Ionic review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following statements is/are correct? 1. All ionic compounds
Beaker A Beaker B Beaker C Beaker D NaCl (aq) AgNO 3(aq) NaCl (aq) + AgNO 3(aq) AgCl (s) + Na 1+ 1
CH 11 T49 MIXING SOLUTIONS 1 You have mastered this topic when you can: 1) define the terms precipitate, spectator ion, suspension, mechanical mixture, solution. 2) write formula equations, complete/total
Name. Practice Test 2 Chemistry 111
Name Practice Test 2 Chemistry 111 1) In the aqueous reaction of K 2 SO 4 (aq) + Ba(NO 3 ) 2 (aq) BaSO 4 (s) + 2KNO 3 (aq), which ions are the spectator ions? A) Ba 2+ 2- and SO 4 B) Ba 2+ and K + C) Ba
Section EXAM III Total Points = 150. November 15, Each student is responsible for following directions. Read this page carefully.
Name Chemistry 11100 Test 66 Section EXAM III Total Points = 150 TA Thursday, 8:00 PM November 15, 2012 Directions: 1. Each student is responsible for following directions. Read this page carefully. 2.
Electrolytes solutions
Chapter 4 Types of Chemical Reactions and Solution Stoichiometry Water has a high surface tension due to hydrogen-bonding molecules attract each other more than the air. Electrolytes solutions which conduct
Unit 1 - Foundations of Chemistry
Unit 1 - Foundations of Chemistry Chapter 2 - Chemical Reactions Unit 1 - Foundations of Chemistry 1 / 42 2.1 - Chemical Equations Physical and Chemical Changes Physical change: A substance changes its
O 2. Cl 2. SbCl 3. NaBr. NaCl
Name: Date: Chemistry ~ Ms. Hart Class: Anions or Cations 6.6 The Mole 1. Mg + O 2 à MgO Mg, O 2, and MgO are there? Mg: MgO? Mg O 2 MgO O 2:Mg? 2. Sb + Cl 2 à SbCl 3 Sb Cl 2 SbCl 3 Sb: Cl 2? 3. NaBr +
Types of Reactions. There are five types of chemical reactions we observed in the lab:
Chemical Reactions Acids and Bases Acids: Form hydrogen ions (H + ) when dissolved in water. HCl (aq) H + (aq) + Cl - (aq) Examples: HCl (hydrochloric acid), HNO 3 (nitric acid), H 2 SO 4 (sulfuric acid),
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) When the following equation is balanced, the coefficients are. 1) NH3 (g) + O2 (g) NO2
Set 1 Marking Scheme: The Structure of the Atom & Chemical Equation Question Explanation Marks
Set Marking Scheme: The Structure of the Atom & Chemical Equation 200 THE STRUCTURE OF THE ATOMS PAPER 2 : STRUCTURE Question Explanation Marks (a)(i) Diffusion Molecules - Made of tiny / discrete particles/
2. The reaction of carbon monoxide and diiodine pentoxide as represented by the equation
1. The complete combustion of phenylhydrazine, C 6 H 5 NHNH 2, with the oxidizer dinitrogen tetraoxide is shown in the equation C 6 H 5 NHNH 2 + N 2 O 4 CO 2 + H 2 O + N 2 When balanced, the sum of all
] after equilibrium has been established?
![] after equilibrium has been established?](/thumbs/74/71209406.jpg "] after equilibrium has been established?")
Chemistry 1 Solubility Equilibrium onster Review 1. A saturated solution forms when a 0. 10 mol of salt is added to 10. L of water. The salt is A. Li S B. CuBr C. Zn( OH) ( ) D. NH CO 4. Consider the following
Fall 2011 CHEM Test 4, Form A
Fall 2011 CHEM 1110.40413 Test 4, Form A Part I. Multiple Choice: Clearly circle the best answer. (60 pts) Name: 1. The common constituent in all acid solutions is A) H 2 SO 4 B) H 2 C) H + D) OH 2. Which
14-Jul-12 Chemsheets A
www.chemsheets.co.uk 14-Jul-12 Chemsheets A2 009 1 BRONSTED-LOWRY ACIDS & BASES Bronsted-Lowry acid = proton donor (H + = proton) Bronsted-Lowry base = proton acceptor (H + = proton) Bronsted-Lowry acid-base
Aqueous Equilibria: Part II- Solubility Product
Aqueous Equilibria: Part II- Solubility Product PSI AP Chemistry Name-------------------------- I Solubility Product, K sp MC #63-103 a) Writing K sp expression b) Solving for K sp c) Solving for (molar)
Writing Chemical formula with polyatomic groups
Writing Chemical formula with polyatomic groups 1. Use the Periodic table to determine the combining powers of single elements. Eg. Magnesium is in Group 2 and has a combining power of 2. 2. Use Table
3 What Happens When Chemicals Are Put Together?
1 COMBUSTION REACTIONS Write the balanced chemical equations for the combustion of the following fuels: propane, C H + 5O fi CO + 4H O butane, C 4 H 10 + 1 / O fi 4CO + 5H O ethanol, C H 5 OH + O fi CO
Electrolytes do conduct electricity, in proportion to the concentrations of their ions in solution.
Chapter 4 (Hill/Petrucci/McCreary/Perry Chemical Reactions in Aqueous Solutions This chapter deals with reactions that occur in aqueous solution these solutions all use water as the solvent. We will look
Ch. 5 Oxidation-Reduction Reactions. Brady & Senese, 5 th Ed.
Ch. 5 Oxidation-Reduction Reactions Brady & Senese, 5 th Ed. 1 Index 5.1. Oxidation-reduction reactions involve electron transfer 5.2. The ion-electron method creates balanced net ionic equations for redox
Chapter 15 Solutions
Chapter 15 Solutions 1. A homogeneous mixture is a combination of two (or more) pure substances that is uniform in composition and appearance throughout. Examples of homogeneous mixtures in the real world
Closed Book Exam - No books or notes allowed. All work must be shown for full credit. You may use a calculator.
Chem 110 Name Exam #4 April 1, 2017 Closed Book Exam - No books or notes allowed. All work must be shown for full credit. You may use a calculator. Question Part I (40) Part II (60) Credit TOTAL Part I
5 Formulae, equations and amounts of substance Answers to Exam practice questions
Pages 147 149 Exam practice questions 1 a) Cu 2 S(s) + 2O 2 (g) 2CuO(s) + SO 2 (g) All numbers correct [1] b) 2FeS(s) + O 2 (g) + 2SiO 2 (s) 2FeSiO (s) + 2SO 2 (g) All five numbers correct [], four numbers
CHM152LL Solution Chemistry Worksheet
Name: Section: CHM152LL Solution Chemistry Worksheet Many chemical reactions occur in solution. Solids are often dissolved in a solvent and mixed to produce a chemical reaction that would not occur if
INTRODUCTION TO SOLUBILITY UNIT 3A SOLUBILITY THEORY. There are three classes of compounds which can form ionic solutions:
INTRODUCTION TO SOLUBILITY There are three classes of compounds which can form ionic solutions: Acids: HCl, H 2 SO 4, HNO 3 Bases: NaOH, KOH, NH 3 Chemistry 12 UNIT 3A SOLUBILITY THEORY Salts: NaCl, KMnO
2. In each of the following pairs of reactions, which would have the faster reaction rate?
CHEMISTRY 12 REACTION RATES WORKSHEET 1. The following data were collected for the reaction: Zn (s) + 2HCl (aq) H 2(g) + ZnCl 2(aq) in which zinc metal was reacted with 0.200 M HCl (aq) : Time (seconds)
CHEMISTRY Midterm #2 October 26, Pb(NO 3 ) 2 + Na 2 SO 4 PbSO 4 + 2NaNO 3
CHEMISTRY 123-02 Midterm #2 October 26, 2004 The total number of points in this exam is 100. The total exam time is 50 min. Good luck! PART I: MULTIPLE CHOICE (Each multiple choice question has a 2-point
Review 7: Solubility Equilibria
Review 7: Solubility Equilibria Objectives: 1. Be able to write dissociation equations for ionic compounds dissolving in water. 2. Given Ksp, be able to determine the solubility of a substance in both
Review Package #2 Measurement and Communication The Mole Chemical Reactions and Equations Stoichiometry
Chemistry 11 Review Package #2 Measurement and Communication The Mole Chemical Reactions and Equations Stoichiometry 1. Measurement and Communication: A. Scientific Notation: - Conversion of numbers from
CHEM 107 (Spring-2004) Exam 2 (100 pts)
CHEM 107 (Spring-2004) Exam 2 (100 pts) Name: ------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet segment
CHAPTER 4 THREE MAJOR CLASSES OF CHEMICAL REACTIONS
CHAPTER 4 THREE MAJOR CLASSES OF CHEMICAL REACTIONS END OF CHAPTER PROBLEMS 4.1 Plan: Review the discussion on the polar nature of water. Water is polar because the distribution of its bonding electrons
1. Which type of bond involves the transfer of electrons from one atom to another? A. Hydrogen bond C. Metallic bond B. Ionic bond D.
1. Which type of bond involves the transfer of electrons from one atom to another? A. Hydrogen bond C. Metallic bond B. Ionic bond D. Covalent bond 2. Ethene (C 2 H 4 ) and cyclohexane (C 6 H 12 ) have
General Chemistry Multiple Choice Questions Chapter 8
1 Write the skeleton chemical equation for the following word equation: Hydrochloric acid plus magnesium yields magnesium chloride and hydrogen gas. a HClO 4 + Mg --> MgClO 4 + H 2 b HClO 4 + Mg --> MgClO
UNIT 9 - STOICHIOMETRY
General Stoichiometry Notes STOICHIOMETRY: tells relative amts of reactants & products in a chemical reaction Given an amount of a substance involved in a chemical reaction, we can figure out the amount
Practice questions for Chapter 4
Practice questions for Chapter 4 1. An unknown substance dissolves readily in water but not in benzene (a nonpolar solvent). Molecules of what type are present in the substance? A) neither polar nor nonpolar
... - " " ..,.., , -
" " 1011 1 010 1011 010 65 1 1011 4 1 5 8 3 8 4 1 5 16 6 19 7 4 8 3 9 35 10 39 11 44 58 59 60 ( ) 60 = 98 K61 63 64 3 10 11 " 40" 10 11 " " " " 4 CuSO 4 CuSO 4( ) Cu + ( ) + SO 4 ( ) ( ) CuSO 4 5H O (
Solution Stoichiometry
Chapter 8 Solution Stoichiometry Note to teacher: You will notice that there are two different formats for the Sample Problems in the student textbook. Where appropriate, the Sample Problem contains the
1. Which one of the following would form an ionic solution when dissolved in water? A. I2 C. Ca(NO3)2 B. CH3OH D. C12H22O11
Chemistry 12 Solubility Equilibrium Review Package Name: Date: Block: I. Multiple Choice 1. Which one of the following would form an ionic solution when dissolved in water? A. I2 C. Ca(NO3)2 B. CH3OH D.
Funsheet 9.1 [VSEPR] Gu 2015
![Funsheet 9.1 [VSEPR] Gu 2015](/thumbs/95/122549630.jpg "Funsheet 9.1 [VSEPR] Gu 2015")
Funsheet 9.1 [VSEPR] Gu 2015 Molecule Lewis Structure # Atoms Bonded to Central Atom # Lone Pairs on Central Atom Name of Shape 3D Lewis Structure NI 3 CF 4 OCl 2 C 2 F 2 HOF Funsheet 9.1 [VSEPR] Gu 2015
TYPES OF CHEMICAL REACTIONS AND SOLUTION STOICHIOMETRY
CHAPTER FOUR TYPES OF CHEMICAL REACTIONS AND SOLUTION STOICHIOMETRY Questions 9. "Slightly soluble" refers to substances that dissolve only to a small extent. A slightly soluble salt may still dissociate
Problem Set III Stoichiometry - Solutions
Chem 121 Problem set III Solutions - 1 Problem Set III Stoichiometry - Solutions 1. 2. 3. molecular mass of ethane = 2(12.011) + 6(1.008) = 30.07 g 4. molecular mass of aniline = 6(12.011) + 7(1.008) +
CHEMICAL REACTIONS. Introduction. Chemical Equations
CHEMICAL REACTIONS Chemistry I Chapter 7 1 Chemical Equations Their Job: Depict the kind of reactants and products and their relative amounts in a reaction. 4 Al (s) + 3 O 2 (g) ---> 2 Al 2 O 3 (s) The
Reaction Kinetics Multiple Choice
Reaction Kinetics Multiple Choice January 1999 1. Consider the reaction: Ca (s) + 2H 2 O (l) Ca(OH) 2 (aq) + H 2 (g) At a certain temperature, 2.50 g Ca reacts completely in 30.0 seconds. The rate of consumption
Attention: Please study problem set 1, 2, 5 and 6 as well. This review does not contain these chapters.
Chemistry 101 Review for Final Attention: Please study problem set 1, 2, 5 and 6 as well. This review does not contain these chapters. 1. Use the following ions to write the chemical formula for each ionic
Unit 7, Lesson 08: The ph of Salt Solutions, Answers
1. Complete the following chart: Unit 7, Lesson 08: The ph of Salt Solutions, Answers on NH 4 PO 3 3- Parent Acid or Base s the parent strong or weak? Will this ion hydrolyze? f the ion will hydrolyze
1. [7 points] How many significant figures should there be in the answer to the following problem?
![1. [7 points] How many significant figures should there be in the answer to the following problem?](/thumbs/89/97819589.jpg "1. [7 points] How many significant figures should there be in the answer to the following problem?")
1 of 6 10/20/2009 3:54 AM Avogadro s Number = 6.022 10 23 1. [7 points] How many significant figures should there be in the answer to the following problem? (29.0025 + 0.2)/(6.1345 36.101) (a) 1 (b) 2
SOLUBILITY CURVES WORKSHEET
SOLUBILITY CURVES WORKSHEET 1.) Which compound is least soluble at: (A) 20 o C? (B) 80 o C? 2.) Which substance is the most soluble at: (A) 10 o C? (B) 50 o C? (C) 90 o C? 3.) The solubility of which substance
Chapter 1 IB Chemistry Warm Ups Stoichiometry. Mrs. Hilliard
Chapter 1 IB Chemistry Warm Ups Stoichiometry Mrs. Hilliard Vocabulary 1. Atomic theory 2. Kelvin 3. Mole 4. Relative abundance 5. Molar Mass 6. Empirical formula 7. Molecular formula 8. Stoichiometry
3.4 DOUBLE DISPLACEMENT REACTIONS
12. The student is to use the Internet to research the composition of various steels and to choose one alloy and list its properties and its applications. The student is then to write a short infomercial
PROVINCIAL EXAMINATION MINISTRY OF EDUCATION CHEMISTRY 12 GENERAL INSTRUCTIONS
INSERT STUDENT I.D. NUMBER (PEN) STICKER IN THIS SPACE JUNE 1998 PROVINCIAL EXAMINATION MINISTRY OF EDUCATION CHEMISTRY 12 GENERAL INSTRUCTIONS 1. Insert the stickers with your Student I.D. Number (PEN)
October 19, 1999 Page 1. Chapter 4 Practice Worksheet Dr. Palmer Graves, Instructor MULTIPLE CHOICE
October 19, 1999 Page 1 MULTIPLE CHOICE Section 4.1 Some Ways that Chemical Reactions Occur 1. The reaction of HNO (aq) + KOH(aq) KNO (aq) + H O(l) is best classified as a(n) a) acid-base neutralization
Chapter 4. Reactions in Aqueous Solution. Lecture Presentation. John D. Bookstaver St. Charles Community College Cottleville, MO
Lecture Presentation Chapter 4 in Solution 2012 Pearson Education, Inc. John D. Bookstaver St. Charles Community College Cottleville, MO Properties of Solutions Solute: substance in lesser quantity in
Solubility Rules See also Table 4.1 in text and Appendix G in Lab Manual
Ch 4 Chemical Reactions Ionic Theory of Solutions - Ionic substances produce freely moving ions when dissolved in water, and the ions carry electric current. (S. Arrhenius, 1884) - An electrolyte is a
Solubility Equilibrium. Solutions. Dissociation Equations. April/May Chemistry 30
Solubility Equilibrium Chemistry 30 Solutions Mixture containing two or more components, but looks like one homogeneous substance Solute: dissolved substance Solvent: dissolving substance In this course:
Chapter 8 Chemical Reactions
Chemistry/ PEP Name: Date: Chapter 8 Chemical Reactions Chapter 8: 1 7, 9 18, 20, 21, 24 26, 29 31, 46, 55, 69 Practice Problems 1. Write a skeleton equation for each chemical reaction. Include the appropriate
During photosynthesis, plants convert carbon dioxide and water into glucose (C 6 H 12 O 6 ) according to the reaction:
Example 4.1 Stoichiometry During photosynthesis, plants convert carbon dioxide and water into glucose (C 6 H 12 O 6 ) according to the reaction: Suppose that a particular plant consumes 37.8 g of CO 2
Why and how atoms combine
Ancheta 2010 Name: Date: Period: Seat No.: A. Lewis diagrams Why and how atoms combine When atoms combine, only electrons in the outer (valence) shell are involved. We can represent these valence electrons
elemental state. There are two different possibilities: DESCRIPTION 1. One cation (+ ion) replaces another. 2. One anion (- ion) replaces another.
CHEMICAL TYPES HANDOUT In these reactions, a free element reacts with a compound to form another compound and release one of the elements of the original compound in the elemental state. There are two
TYPES OF CHEMICAL REACTIONS AND SOLUTION STOICHIOMETRY
CHAPTER TYPES OF CHEMICA REACTIONS AND SOUTION STOICHIOMETRY Questions 1. a. Polarity is a term applied to covalent compounds. Polar covalent compounds have an unequal sharing of electrons in bonds that
Solutions 4a (Chapter 4 problems)
Solutions 4a (Chapter 4 problems) Chem151 [Kua] 4.10 A balanced chemical equation must have equal numbers of atoms of each element on each side of the arrow. Balance each element in turn, beginning with
Unit Learning Targets (L.T.):
Unit 9: Chemical Equations and Reactions Chapters 8 and 19 Name Block Unit Learning Targets (L.T.): By the end of the unit, students will be able to: Chapter 8: 1. Correctly write and balance chemical
Chemistry deals with matter and its changes CHEMICAL REACTIONS
Chemistry deals with matter and its changes CHEMICAL REACTIONS CHEMICAL EQUATIONS N 2 + 3 H 2 2 NH 3 2 N 6 H 2 N 6 H reactants products balanced means equal numbers of atoms of each element on each side
Questions Booklet. UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION. Level 3 Applied Science. Name:.. Teacher:..
Level 3 Applied Science UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION Questions Booklet Name:.. Teacher:.. Level 3 Applied Science 2017-2018 Unit 1 (Chemistry) 1 1. State the relative
1. How many significant digits are there in each of the following measurements? (½ mark each) a) ha b) s. c) d) 0.
SCH 4U_07-08 SCH3U: REVIEW NAME: (TOTAL SCORE = 80) 1. How many significant digits are there in each of the following measurements? (½ mark each) a) 204.45 ha b) 18.23 s c) 380 000 d) 0.00560 g 2. Name
Equilibri acido-base ed equilibri di solubilità. Capitolo 16
Equilibri acido-base ed equilibri di solubilità Capitolo 16 The common ion effect is the shift in equilibrium caused by the addition of a compound having an ion in common with the dissolved substance.
Study Guide: Stoichiometry
Name: Study Guide: Stoichiometry Period: **YOUR ANSWERS MUST INCLUDE THE PROPER NUMBER OF SIG FIGS AND COMPLETE UNITS IN ORDER TO RECEIVE CREDIT FOR THE PROBLEM.** BALANCE THE FOLLOWING EQUATIONS TO USE
Assignment 04 (A) a) ii and iii b) i, ii, and iii c) i, iv, and v d) iii e) ii (These are molecular compounds.)
Assignment 04 (A) 1- Which of the following are nonelectrolytes in water? (i) HF (ii) ethanol, C 2 H 5 OH (iii) C 12 H 22 O 11 (iv) KClO 3 (v) Cu(NO 3 ) 2 a) ii and iii b) i, ii, and iii c) i, iv, and
Objective. SWBAT identify the 5 types of reactions by analyzing the structure of chemical reactions
Science Starter 1. What do we call the ingredients of a chemical reaction? What is produced? 2. What are the indicators of physical change? 3. What are the indicators of chemical change? 4. Why do we have
Note: coefficients of 1 can be omitted, and are only shown here for clarity. S 2 O 6 charge 0 Check: Al 4 Mn 3 O 6. charge 0. Pb 2 O 4.
Practice Problems: Balancing & Stoichiometry KEY CHEM 1A I suggest that you complete these practice problems in pencil since you may need to erase and change coefficients as you balance the chemical equations.
Sample Exam 2 Chapters 4, 5, 7 Show ALL work for FULL credit!!
CHM151 Name: KEY Sample Exam 2 Chapters 4, 5, 7 Show ALL work for FULL credit!! 1. How many valence electrons are there in the molecule disilicon hexahydride, Si 2 H 6? a. 8 b. 14 c. 18 d. 20 2. What is