Free Printable Compounds: Formulas and Names

1.

What is the name of the compound $H_2S$ ?

(a)

2.

What is the name of the compound $SF_6$ ?

(a)

3.

What is the name of the compound $H_2CO_3$ ?

(a)

4.

What is the name of the compound $\left(NH_4\right)_2SO_4$ ?

(a)

5.

What is the chemical formula of calcium carbide?

a)

$CaC$

b)

$CaC_2$

c)

$Ca_2C$

d)

$Ca_2C_4$

6.

What is the correct formula for the compound Permanganic acid?

a)

$HMnO$

b)

$H_2MnO_4$

c)

$HMnO_4$

d)

$H_2MnO_3$

7.

What is the correct formula for the compound Tin (IV) oxide?

a)

$SnO_2$

b)

$SnO$

c)

$SnO_4$

d)

$Sn_2O$

8.

What is the chemical formula of Sulfurous acid?

a)

$HSO_3$

b)

$H_2SO_3$

c)

$HSO_4$

d)

$H_2SO_4$

9.

What is the chemical formula of Tetraphosphorous nonasulfide?

a)

$P_4S_8$

b)

$P_4S_7$

c)

$P_4S_{10}$

d)

$P_4S_9$

10.

When metals bond with non-metals they form what type of bonds

a)

covalent

b)

ionic

11.

Which of the following anions is polyatomic?

a)

Hydride

b)

Fluoride

c)

Cyanide

d)

Iodide

12.

What is the charge of copper in the compound: $CuBr_2$ ?

a)

+1

b)

-1

c)

+2

d)

-2

13.

What is the charge of barium in the compound: $BaCrO_4$ ?

a)

+1

b)

+2

c)

+3

d)

+4

14.

When naming compounds that contain a nonmetal bonded to a nonmetal, _____ must be used.

a)

ionic charges

b)

Parentheses

c)

Lewis structure

d)

Greek prefixes

15.

For monoatomic anions, the name of the element is modified by the suffix ____

a)

-ide

b)

-ic

c)

-ite

d)

-ate

16.

The net charge of an ionic compound must be _____

a)

1

b)

0

c)

3

d)

2

17.

When is the suffix -ite used when naming ionic compounds with oxyanions?

a)

It is used when there is no oxyanion.

b)

It is used when naming the oxyanion with one fewer oxygen atom than the most common oxyanion.

c)

It is used when there are more than two oxyanions.

d)

It is used when naming the oxyanion with one more oxygen atom than the most common oxyanion.

18.

Cations are ions that carry a positive charge because the number of protons in the atom is greater than the number of electrons.

a)

True

b)

False

19.

What is the name of the compound $Na_2C_2O_4$ ?

(a)

20.

The Lewis Dot structure for Oxygen shows ___ valence electrons. Of these, ___ are paired, and ___ are unpaired. Oxygen forms ___ covalent bonds.

a)

6, 2, 4, 2

b)

6, 4, 2, 2

c)

4, 2, 1, 4

d)

4, 1, 2, 4

Compounds: Formulas and Names

Total questions: 20

Worksheet time: 20mins

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