Answers IA-Chemistry A Survey of Chemistry ANomenclature of Ionic Compounds

Nomenclature of Ionic Compounds Answers

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What is the chemical formula for nickel (III) oxide?

NiO

Ni3O

NiO3

Ni2O3

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When is a roman numeral most likely needed in the name of an ionic compound?

when more than one polyatomic ion appears

when the anion is a polyatomic ion

when more than one cation is used in the formula

when the cation is a transition metal

How many ions that have a +1 charge will bond with an ion that has a –2 charge?

one

two

three

four

What is the chemical formula of a compound that is composed of the ions Ca and Br?

CaBr

CaBr2

Ca3Br

Ca3Br2

What is the chemical formula for ammonium carbonate?

(NH)CO

(NH)HCO

NH(CO)

NH(CO)

How does the periodic table help in predicting the formula of a stable ionic compound?

Metals in Group 1 form cations with a –1 charge.

Metals in Group 2 form cations with a +2 charge.

Metals in Group 1 form anions with a +1 charge.

Metals in Group 2 form anions with a –2 charge.

What is the ratio of ions needed to produce neutral potassium chloride?

one potassium ion to one chloride ion

two potassium ions to one chloride ion

one potassium ion to two chloride ions

two potassium ions to three chloride ions

What name should be used for the ionic compound Co(SO)?

cobalt(III) sulfide

cobalt(III) sulfate

cobalt(III) trisulfide

cobalt(III) trisulfate

What is the name of the ionic compound CsS?

cesium sulfur

cesium sulfide

dicesium sulfur

dicesium sulfide

What is the ratio of Sr ions to Br ions in a neutral compound?

1:1

1:2

2:1

3:2

What is the ratio of sodium ions to bromide ions in neutral sodium bromide?

1:1

2:1

2:3

3:2

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Nomenclature of Ionic Compounds Answers

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