Answers26-27 CFISD TX-Chemistry A CRNomenclature of Covalent Compounds

Nomenclature of Covalent Compounds Answers

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4

Which rule should be followed when naming binary acids?

A
Use a prefix for the number of hydrogens.
B
Start the name with hydro-.
C
Change -ate to -ic.
D
Change -ous to -ite.
5

Based on the name, which substance is a covalent compound?

A
copper(II) chloride
B
chromium(III) sulfate
C
dinitrogen pentoxide
D
ammonium carbonate
6

Which is the IUPAC name for NO?

A
nitric oxide
B
binitrogen oxide
C
dinitrogen dioxide
D
nitrogen monoxide
8

Which compound does H2SO4 represent when in an aqueous solution?

A
sulfur oxide
B
sulfuric acid
C
hydrogen sulfide
D
hydrogen disulfate
9

Which is the name for SO3?

A
silver oxide
B
trisulfur oxide
C
sulfur trioxide
D
silver trioxide
10

Which is an IUPAC name for a covalent compound?

A
carbon dioxide
B
carbon bioxide
C
zinc monophosphate
D
zinc phosphate
13

Which is the IUPAC name for NO?

A
nitric oxide
B
binitrogen oxide
C
dinitrogen dioxide
D
nitrogen monoxide
14

Which substance is a binary acid?

A
hydrochloric acid
B
phosphoric acid
C
nitrous acid
D
sulfuric acid
15

Which rule is used for writing the name of an ionic base?

A
The chemical name begins with “hydro.”
B
The chemical name ends with “hydroxide.”
C
The “ide” ending is changed to “ic.”
D
The polyatomic “ate” ending is changed to “ic.”
16

Which is the correct formula for phosphorus pentachloride?

A
PCl4 because a subscript of 4 indicates four Cl atoms
B
PCl5 because a subscript of 5 indicates five Cl atoms
C
P5Cl because a subscript of 5 indicates five P atoms
D
P5Cl3 because a subscript of 5 indicates five P atoms

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