Complete this study guide to receive 5 bonus points on your test. Only study guides that are complete will receive the bonus.

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1 CHEMISTRY AND PERIODIC TABLE STUDY GUIDE Assigned: Thursday, Due: Thursday, Test Day: Friday, Complete this study guide to receive 5 bonus points on your test. Only study guides that are complete will receive the bonus. Know what the following chemical formulas are for: 1. CO2 2. H2O 3. FeO 4. NaCl 5. C6H12O6 6. O2 7. N2 8. OH- 9. H+ 10. H2O2 Tell how many atoms there are for each element in these molecules: 11. H2 12. C4 13. N 14. Au3 15. O12 Tell how many atoms there are for each element in these molecules: 16. H2O 17. CO2 C =

2 18. Fe2O3 Fe = 19. NH3 N = C6H12O6 C = H2CO3 C = NaOH Na = Fe2O3 Fe = CO2 C = Tell which chemical equations show conservation of mass. Work out the equation, then circle where it is balanced or unbalanced Fe2O3 + 3 C 4 Fe + 3 CO2 balanced / unbalanced

3 26. 2 Na + 2 H2O 2 NaOH + H2 balanced / unbalanced 27. H2CO3 H2O + 2 CO2 balanced / unbalanced HCl + 2 NaOH 2 NaCl + 2 H2O balanced / unbalanced Fill in the blanks: 29. Matter can neither be nor in an isolated system. 30. Matter can be changed to a different substance, but the mass will not. Answer the following questions: 31. A 10 gram piece of sodium is dropped into 50 grams of water. After the reaction, the water weighs 40 grams and there is no sodium left. How much mass was released as smoke?

4 32. A mass of chemical A is 17 grams, and the mass of chemical B is 11 grams. If the two chemicals are mixed and a reaction takes place, what is the mass of the end product? 33. A 1 gram bag is filled with 99 grams of vinegar and 50 grams of baking soda. The bag is sealed. The acid and base react, and the bag fills with carbon dioxide gas. After the reaction, there is now a liquid in the bag that weighs 120 grams. How many grams are there of carbon dioxide in the bag? 34. A pot filled with 500 grams of water boils. After 10 minutes, there are 44o grams of water. How much water was converted into water vapor? 35. Hydrogen reacts with oxygen to produce water as represented by this chemical equation: 2H2 + O2 2H2O 4 grams of hydrogen react completely with oxygen to produce 36 grams of water. How many grams of oxygen are involved in the given reaction? 36. Review the reactants in the chemical reaction shown. CaO + CO2? How many atoms of oxygen must be present in the product of this reaction? 37. Think of a sentence. Are sentences written up and down on the page, or are they written from left to right? 38. Sentences go from left to right and end with a usually.

5 39. Periods on the periodic table go from left to right. For example, Lithium is the first element in Period two, followed by Beryllium, Boron, etc. What is the last element in Period 2? 40. Sodium (Na) is the first element in Period 3. What is the last element in Period 3? 41. Tell the first and last element in Period 4. 1 st 2 nd 42. Tell the first and last element in Period 5. 1 st 2 nd 43. Tell the first and last element in Period 6. 1 st 2 nd 44. Each element in a period has one more and one more than the previous element. 45. Magnesium has 12 protons. How many protons will the next element in the period have? 46. Sulfur has 16 protons. How many protons will the next element in the period have? 47. Sodium (Na) has an atomic number of 11. Circle which of the following elements is not in Sodium s period: aluminum sulfur cesium chlorine 48. Potassium (K) has an atomic number of 19. Circle which of the following elements is not in Sodium s period: lithium calcium copper krypton 49. On a mansion or large house, columns go which way?

6 50. Columns go up and down. Columns are also known as groups or families. All of the elements in a family are related because they all have the same amount of outer shell electrons. Each has the same characteristics. For example, everyone in group 1, the alkali metals, has outer shell electron, and will burn when in water. Name three elements in group 1: 51. Group 17 is known as the Halogen Family. Each has 7 valence shell electrons. All of these are very reactive and will form types of salts (most are not edible). Name four elements in the Halogen Family. 52. Circle which of the following will have the most similar properties and same number of valence electrons as Oxygen: Phosphorous chlorine neon sulfur 53. Circle which of the following will have the most similar properties and same number of valence electrons as Calcium: titanium nickel magnesium lithium 54. Synthetic elements are elements that are not found in nature. They are created by scientists, usually by slamming particles together at high speeds to force extra protons into a nucleus. This makes a new element, but these elements usually don t last long. Look at your periodic table. Numbers 43, 61, , and are all synthetic. Name five elements with their atomic number that are synthetic:

7 55. What are the most electrons that can fit on the first shell? On the second shell? On the third shell? 56. Magnesium has an atomic number of 12. How many protons dos it have? How many electron does it have? For Mg, how many electrons fit in the first shell? In the second shell? in the third shell? How many valence electrons are there?. 57. Chlorine has an atomic number of 17. How many protons dos it have? How many electron does it have? For Cl, how many electrons fit in the first shell? In the second shell? in the third shell? How many valence electrons are there?. Underline the reactants and circle the products. Write the following equations and solve the equation grams of Zinc [Zn] reacts with HCl to produce 84 grams of zinc chloride [ZnCl] and 42 grams of hydrogen [H]. How many grams of HCl were there? + + Grams of HCl = grams of sulfuric acid [H2SO4] reacts with iron [Fe] to produce 55 grams of iron sulfate [Fe2(SO4)3] and 31 grams of hydrogen. How many grams of iron were there? + + Grams of iron = grams of zinc reacts with 50 grams of HCl to produce zinc chloride [ZnCl2] and 49 grams of hydrogen. How many grams of zinc chloride were there? + + Grams of zinc chloride =

8 61. Circle which of the following atoms is NOT active / will not react? (hint: has a full outer shell) Al H C Ne 62. Circle which of the following atoms is NOT active / will not react? (hint: has a full outer shell) He Cu Li Na 63. Which side of the periodic table to metals tend to be found: left or right 64. Synthetic / manmade elements tend to be found: top left right bottom 65. Most of the non metals tend to be found: top left right bottom 66. An acid has a H+ ion. For example: HCl, H2SO4 67. A base has an OH ion. For example: NaOH, LiOH, KOH 68. An atom is a single unit of an element. A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. Put the following under its correct heading: KOH, NaCl, N2, O, O2, NaOH, Li, C6H12O6 Atom Molecule Compound