Name: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Transcription

1 Name: Class: Date: Chapter 8 and 9 Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question 1 What type of ions have names ending in -ide? a only cations c only metal ions b only anions d only gaseous ions 2 When Group 2A elements form ions, they a lose two protons c lose two electrons b gain two protons d gain two electrons 3 When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a a prefix c Roman numeral following the name b suffix d superscript after the name 4 Aluminum is a group 3A metal Which ion does A1 typically form? a Al 3 c Al 5 b Al 3 + d Al Which of the following compounds contains the Mn 3 + ion? a MnS c Mn 2 O 3 b MnBr 2 d MnO 6 How are chemical formulas of binary ionic compounds generally written? a cation on left, anion on right b anion on left, cation on right c Roman numeral first, then anion, then cation d subscripts first, then ions 7 Which of the following formulas represents an ionic compound? a CS 2 c N 2 O 4 b BaI 2 d PCl 3 8 Which element, when combined with fluorine, would most likely form an ionic compound? a lithium c phosphorus b carbon d chlorine 9 Which of the following shows correctly an ion pair and the ionic compound the two ions form? a Sn 4 +, N 3 ; Sn 4 N 3 c Cr 3 +, I ; CrI b Cu 2 +, O 2 ; Cu 2 O 2 d Fe 3 +, O 2 ; Fe 2 O 3 10 In which of the following is the name and formula given correctly? a sodium oxide, NaO c cobaltous chloride, CoCl 3 b barium nitride, BaN d stannic fluoride, SnF 4 11 Which of the following compounds contains the lead(ii) ion? a PbO c Pb 2 O b PbCl 4 d Pb 2 S 1

2 Name: 12 Molecular compounds are usually a composed of two or more transition elements b composed of positive and negative ions c composed of two or more nonmetallic elements d exceptions to the law of definite proportions 13 Which of the following correctly shows a prefix used in naming binary molecular compounds with its corresponding number? a deca-, 7 c hexa-, 8 b nona-, 9 d octa-, 4 14 Which of the following formulas represents a molecular compound? a ZnO c SO 2 b Xe d BeF 2 15 When naming acids, the prefix hydro- is used when the name of the acid anion ends in a -ide c -ate b -ite d -ic 16 Which of the following shows both the correct formula and correct name of an acid? a HClO 2, chloric acid c H 3 PO 4, phosphoric acid b HNO 2, hydronitrous acid d HI, iodic acid 17 What is the formula for sulfurous acid? a H 2 SO 4 c H 2 SO 2 b H 2 SO 3 d H 2 S 18 How are bases named? a like monatomic elements c like ionic compounds b like polyatomic ions d like molecular compounds 19 Select the correct formula for sulfur hexafluoride a S 2 F 6 c F 6 S 2 b F 6 SO 3 d SF 6 20 Which of the following is the correct name for N 2 O 5? a nitrous oxide c nitrogen dioxide b dinitrogen pentoxide d nitrate oxide 21 What is the correct name for Sn 3 (PO 4 ) 2? a tritin diphosphate c tin(iii) phosphate b tin(ii) phosphate d tin(iv) phosphate 22 Which is a typical characteristic of an ionic compound? a Electron pairs are shared among atoms b The ionic compound has a low solubility in water c The ionic compound is described as a molecule d The ionic compound has a high melting point 23 Which of these elements does not exist as a diatomic molecule? a Ne c H b F d I 2

3 Name: 24 How do atoms achieve noble-gas electron configurations in single covalent bonds? a One atom completely loses two electrons to the other atom in the bond b Two atoms share two pairs of electrons c Two atoms share two electrons d Two atoms share one electron 25 Which of the following diatomic molecules is joined by a double covalent bond? a O 2 c N 2 b Cl 2 d He 2 26 A molecule with a single covalent bond is a CO 2 c CO b Cl 2 d N 2 27 According to VSEPR theory, molecules adjust their shapes to keep which of the following as far apart as possible? a pairs of valence electrons c mobile electrons b inner shell electrons d the electrons closest to the nuclei 28 The shape of the methane (CH 4 ) molecule is called a tetrahedral c four-cornered b square d planar 29 A bond formed between a silicon atom and an oxygen atom is likely to be a ionic c polar covalent b coordinate covalent d nonpolar covalent 30 Which of the following covalent bonds is the most polar? a H F c H H b H C d H N Short Answer 31 Draw the Lewis Dot Diagram for H 2 O 32 Draw the Lewis Dot Diagram for CF 4 33 Draw the Lewis Dot Diagram for N 2 O 4 3

4 Name: 34 Draw two resonance structures for (CO 3 ) -2 4

5 Chapter 8 and 9 Test Answer Section MULTIPLE CHOICE 1 ANS: B DIF: L1 REF: p 254 OBJ: 911 STO: C133 2 ANS: C DIF: L1 REF: p 254 OBJ: 911 STO: C17 3 ANS: C DIF: L1 REF: p 254, p 255 OBJ: 911 STO: C16 4 ANS: B DIF: L1 REF: p 253 OBJ: 911 STO: C133 5 ANS: C DIF: L1 REF: p 262, p 263 OBJ: 921 STO: C17, C16 6 ANS: A DIF: L1 REF: p 261 OBJ: 921 STO: C16 7 ANS: B DIF: L2 REF: p 262 OBJ: 921 STO: C16 8 ANS: A DIF: L2 REF: p 253, p 254, p 262 OBJ: ANS: D DIF: L2 REF: p 262 OBJ: 921 STO: C16 10 ANS: D DIF: L2 REF: p 262, p 263 OBJ: 921 STO: C16 11 ANS: A DIF: L2 REF: p 262, p 263 OBJ: 921 STO: C16 12 ANS: C DIF: L1 REF: p 268 OBJ: 931, ANS: B DIF: L2 REF: p 269 OBJ: 932, C16 14 ANS: C DIF: L2 REF: p 269 OBJ: 932, C16 15 ANS: A DIF: L2 REF: p 272 OBJ: 941 STO: C18 16 ANS: C DIF: L2 REF: p 272 OBJ: 941 STO: C18 17 ANS: B DIF: L2 REF: p 272 OBJ: 942 STO: C18 18 ANS: C DIF: L1 REF: p 273 OBJ: 943 STO: C18 19 ANS: D DIF: L2 REF: p 270, p 278 OBJ: 932, 952 STO: C18 20 ANS: B DIF: L2 REF: p 269, p 277 OBJ: 932, 953 STO: C17 1

6 21 ANS: B DIF: L3 REF: p 264, p 277 OBJ: 953 STO: C17 22 ANS: D DIF: L2 REF: p 244 OBJ: ANS: A DIF: L1 REF: p 217 OBJ: ANS: C DIF: L2 REF: p 217 OBJ: ANS: A DIF: L2 REF: p 221 OBJ: ANS: B DIF: L2 REF: p 222 OBJ: 821, ANS: A DIF: L1 REF: p 232 OBJ: ANS: A DIF: L1 REF: p 232 OBJ: ANS: C DIF: L2 REF: p 238, p 239 OBJ: 811, ANS: A DIF: L3 REF: p 238, p 239 OBJ: 841 SHORT ANSWER 31 ANS: See Drawing Key 32 ANS: See drawing key 33 ANS: See drawing key 34 ANS: See drawing key 2