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2nd Nine Weeks Exam

Last updated over 1 year ago

20 questions

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Question 20

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Which of the following would be the correct name for N2O3?

dinitrogen trioxide

nitrogen(II) oxide

nitrogen(III) oxide

nitrogen oxide

What is the formula of the compound formed between the potassium ion and the sulfide ion?

KS

KS2

K2S3

KS3

K2S

Iron (III) sulfite has the formula:

Fe3SO3

Fe2(SO4)3

Fe2(SO3)3

Fe2SO3

The correct formula for a substance composed of ions Ag+ and CO32- is ________________.

AgCO3

Ag2CO3

Ag3CO3

Ag2 (CO3)2

_______________ is the formula of a binary compound.

NaOH

HNO3

Al2O3

O2

CaCl2 is called _____________________.

calcium chlorate

calcium chloride

calcium chromate

calcium chlorite

If the algebraic addition of the charges on the atoms or ions in a compound add up to _______________, the formula for the compound is correct.

4

1

2

0

An ion with an oxidation number of +2 can combine with two identical ions, each having an oxidation number of _________________________.

-2

+2

+1

-1

The Roman numeral II in the name copper (II) sulfate indicates ________________________.

there are two copper ions per molecule

there are two copper atoms per molecule

there are two sulfate ions per molecule

copper is in the +2 state

Which of the following formulas is incorrect?____________________

AlPO4

NaS

Ca(OH)2

KNO3

Select the correct name of the following compound:     Fe(OH)2

Iron hydroxide

Iron hydrogen oxide

Iron (II) hydroxide

Ferrous hydrogen

Select the correct name of the following compound:     Cr2O3

Chromium (II) oxide

Chromium (III) oxide

Chromium trioxide

Chromium oxide

Select the correct name of the following compound:  AgF

Silver monofluoride

Silver fluoride

Silver (II) fluoride

Gold fluoride

Select the correct formula for the following compound:  Ammonium chloride

NH4ClO

NH4Cl2

NH4C

NH4Cl

Select the correct formula for the following compound:  Potassium sulfate

K2SO4

K2S4

K2SO3

K2(SO4)2

Select the correct formula for the following compound:  Cobalt (II) oxide

Co2O

CoO

CoO2

Co2O2

Select the correct formula for the following compound:  Manganese (IV) oxide

MgO2

Mn4O2

MnO2

Mn4O4

Select the correct name for the following compound:  Cu2O

copper oxide

copper (II) oxide

copper (I) oxide

Dicopper monoxide

Sodium cyanide, NaCN, contains a cyanide ion.  What is the charge on the cyanide ion?

+1

+2

-2

-1

Which chemical formula does not represent a possible compound with sulfate, SO4?

Na2SO4

KSO4

Al (SO4)3

CaSO4