1. When is a roman numeral necessary when naming a compound?
   

A.When the nonmetal anion has variable charge

B.When a polyatomic ion is used

C.When the metal cation has variable charge

D.When there is a subscript on the first element


12.Which of the following is the correct name for SiO2?

A.Silicon dioxide

B.Silicon oxide

C.Silicon (II) oxide

D.Silicon oxate


13.Which of the following is the correct name for LiHCO3?

A Lithium monohydrogen carbonate

B Lithium bicarbonate

C Lithium (I) bicarbonate

D Monolithium monohydrogen carbonate


14.Which of the following is the correct name for KBr?

A Potassium monobromide

B Monopotassium monobromide

C Potassium bromide

D Potassium (I) bromide


15Which of the following is the correct name for N2O5?

A Nitrogen pentoxide

B Nitrogen oxide

D Dinitrogen pentoxide

C Nitrogen (II) oxide (V)


16 Which of the following is the correct name for I2?

A Diiodide

B Iodide

C Iodine

D Iodate


17 Which of the following is the correct name for PbF2?

A Lead fluoride (II)

B Lead fluoride

C Lead difluoride

D Lead (II) fluoride


18 Which of the following is the correct name for Cu(ClO4)2?

A Copper (II) chlorate

B Copper dichlorate

C Copper chlorate

D Copper chlorate (II)

1. When is a prefix NOT necessary when naming a compound/molecule?
   

I. When the compound/molecule contains a metal cation

II. When the compound/molecule contains only nonmetals and/or metalloids

III. When there is only one of the first atom in a covalent molecule

AI only

BII only

CIII only

DI & II

EI & III

f. II & III

1. Which of the following is the correct formula for bromine?
   

. Br

ABr2

BBrO3

CB

1. Which of the following is the correct formula for cobalt (III) oxide?
   

ACo3O

BCo6O3

CCo3O2

DCo2O3

1. Which of the following is the correct formula for magnesium nitrate?
   

. MgNO3

AMg(NO3)2

BMgNO6

CMg2NO3

1. Which of the following is the correct formula for boron trichloride?
   

. BCl3

AB + 3 Cl

BB3Cl

C3 BCl

1. Which of the following is the correct formula for barium iodide?
   

. BaI2

ABa7I2

BBaI

CBa2I

1. Which of the following is the correct formula for aluminum bromide?
   

. Al7Br3

AAlBr3

BAl3Br

CAl3Br7

1. Which of the following is the correct formula for heptaphosphorus decabromide?
   

. P6Br10

AP7Br9

BP7Br10

CP5Br8

1. Which of the following elements in NOT a diatomic element?
   

. Hydrogen

ACarbon

BChlorine

COxygen

1. A word equation:
   

. Describes a chemical reaction using only words

ADescribes a chemical reaction using chemical formulas and symbols

BDescribes a chemical reaction by reading the states of matter

CDescribes a chemical reaction using words and symbols

1. A formula/skeleton equation:
   

ADescribes a chemical reaction using only words

BDescribes a chemical reaction using chemical formulas and symbols

CDescribes a chemical reaction by reading the states of matter

DDescribes a chemical reaction using words and symbols

1. Which of the following represents a reversible reaction?
   

. A + B → C

AA → B + C

BA + B → C + D

CA ⇌ B + C