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Bonding / Nomenclature, %, Mole Calcu PRACTICE QUIZ

Total questions: 47

Worksheet time: 1hrs 21mins

Name
Class
Date
1.

Which of the following gives the correct chemical formula for the ionic compound Magnesium Phosphide?

a)

Mg2P3

b)

MgP

c)

Mg3P2

d)

MgP2

2.

Which of the following gives the correct chemical formula for the ionic compound Calcium Nitride?

a)

Ca2N3

b)

CaN

c)

Ca3N2

d)

CaN2

3.
What is the correct chemical name for the ionic compound:  Na2O
a)
Sodium oxide
b)
Sodium (II) oxide
c)
Disodium monoxide
d)
Disodium oxide
4.
What is the correct chemical name for the ionic compound: Fe3N2
a)
Iron nitride
b)
Iron (III) nitride
c)
Iron (II) nitride
d)
TriIron dinitride
5.
What is the correct chemical name for the ionic compound: CuS
a)
copper sulfide
b)
copper (I) sulfide
c)
copper (II) sulfide
d)
copper monosulfide
6.

Which of the following gives the correct chemical formula for the covalent compound Dinitrogen Monoxide?

a)

NO

b)

N2O

c)

N2O2

d)

O2N2

7.

What is the correct chemical name for the molecular compound: CS2

a)

Carbon Sulfide

b)

Carbon disulfide

c)

dicarbide disulfide

d)

Carbon (II) Sulfide

8.

What is the correct chemical name for the molecular compound: SF4

a)

Sulfur Fluoride

b)

Sulfur Tetrafluoride

c)

Tetrasulfide Fluoride

d)

Sulfur (IV) Fluoride

9.

Name the following ionic compound: SnO2

a)

tin(II) oxide

b)

tin(IV) oxide

c)

tin(II) oxygen

d)

tin oxide

10.
What is the formula for iron (II) hydroxide?
a)
FeO
b)
FeOH
c)
Fe(OH)2
d)
FeOH2
11.
What is the name of Ca(NO3)2
a)
calcium nitrite
b)
calcium (II) nitrate
c)
calcium nitrate
d)
carbon nitrate
12.
Would the following compound need a roman numeral, Greek prefix, neither, or both: Al(NO3)3
a)
RN
b)
GP
c)
Neither
d)
Both
13.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
14.
Would the following compound need a roman numeral, Greek prefix, neither, or both: N2O3
a)
RN
b)
GP
c)
Neither
d)
Both
15.

Classify the following compound: OF2

a)

Covalent

b)

Ionic/fixed charge

c)

Ionic/variable charge

d)

Acid

e)

Hydrate

16.

The molecular formula for disulfur trioxide is:

a)

S3O2

b)

SO

c)

S2O3

d)

S2O

17.

The molecular formula of sulfur hexabromide is

a)

SBr₆

b)

S₆Br

c)

S(VI)Br

d)

S6Br

18.
hydrochloric acid
a)
HCl
b)
HClO
c)
H3ClO3
d)
HClO3
19.

phosphoric acid

a)

H3PO4

b)

H2PO4

c)

H3P

d)

H3PO3

20.

sulfuric acid

a)

HSO3

b)

H2SO3

c)

H2SO4

d)

H3SO4

21.
HF
a)
hydrofluoric acid
b)
Hypofluoric acid
c)
hydrogen fluorine acid
22.

Any Ion that ends in -ate always has one more oxygen than the ion that end in -ite. What is the name of H3PO3

a)

hydrophosphoric acid

b)

phosphorous acid

c)

phosphoric acid

d)

hydrogen phosphorus oxide

23.

Name the following compound: MgSO4*7H2O

a)

magnesium sulfite hexahydrate

b)

magnesium tetrasulfate hexahydrate

c)

magnesium sulfate heptahydrate

d)

magnesium sulfite heptahydrate

24.

Na2CO3 · 10 H2O is known as sodium carbonate ______

a)

Hydroxide

b)

Hydrate

c)

Decahydrate

d)

None of the above

25.

Magnesium carbonate pentahydrate

a)

MgCO3 · 5H2O

b)

Mg2(CO3)3 · 5H2O

c)

MgCO3 · 6H2O

d)

Mg2(CO3)3 · 6H2O

26.

Imaginary element "Q" has the same charge as oxygen and imaginary element "Ax" has the same charge as rubidium. What is the correct chemical formula for this ionic compound?

a)

Ax2Q

b)

QAx

c)

AxQ2

d)

Q2Ax

27.

Imaginary element "Z" can form the same ions as iron. Imaginary element "Yo" has the same charge as bromine. Which is a possible formula of this ionic compound?

a)

YoZ

b)

ZYo3

c)

Z3Yo

d)

ZYo4

28.

Given that "Du" and "J" are imaginary nonmetals named dudium and jinxy, respectively. Name this covalent compound: DuJ3

a)

dudium jinxy

b)

trijinxy monodudium

c)

monodudium trijinxy

d)

dudium trijinxy

29.

Imaginary nonmetal ion pillowide (Pi-) bonds with hydrogen to form the acid HPi. Name this acid

a)

Pillowic Acid

b)

Hydropillowic acid

c)

Pillowous Acid

d)

Hydropillowous acid

30.

Imaginary element vizium "Vi" can form the same ions as gold. Imaginary element wackium "Wa" has the same charge as sulfur. Name this hydrate: ViWa3 . 8H2O

a)

Vizium wackide hydrate

b)

Vizium triwackide octahydrate

c)

Vizium wackide octahydrate

d)

Wackide vizium hydrate

31.
What is the percent by mass of oxygen in MgO?
a)
20%
b)
40%
c)
50%
d)
60%
32.
What is the percent by mass of chlorine in NaCl?
a)
39%
b)
61%
c)
35%
d)
65%
33.
What is the percent by mass of fluorine in CaF2 (gram-formula mass = 78 g/mol)?
a)
24%
b)
49%
c)
51%
d)
65%
34.
What is the percent composition by mass of sulfur in the compound MgSO4 (gram formula mass = 120 g/mol)?
a)
20%
b)
27%
c)
46%
d)
53%
35.
In which compound is the percent composition by mass of Cl equal to 42%?
a)
HClO (gram formula mass = 52 g/mol)
b)
HClO2 (gram formula mass = 68 g/mol)
c)
HClO3 (gram formula mass = 84 g/mol)
d)
HClO4 (gram formula mass = 100 g/mol)
36.

What percentage of the total atomic mass of carbon monoxide (CO) is composed of carbon?

a)

29%

b)

43%

c)

57%

d)

73%

37.

What percentage of the total atomic mass of magnesium bromide (MgBr2) is composed of magnesium?

a)

13%

b)

43%

c)

63%

d)

87%

38.

What percentage of the total atomic mass of magnesium bromide (MgBr2) is composed of bromine? Hint - consider the mass of both atoms of bromine in your calculation.

a)

13%

b)

43%

c)

63%

d)

87%

39.

What percentage of the total atomic mass of lithium phosphide (Li3P) is composed of lithium? Hint - consider all three atoms of lithium in your calculation.

a)

13%

b)

29%

c)

40%

d)

60%

40.

How many atoms are present in a 13.5 gram sample of beryllium?

a)

1.5 particles

b)

9 particles

c)

4.03 x1023 particles

d)

9.02 x1023 particles

41.

A sample of silver contains 5.71 x 1022 atoms. How many moles of silver are present?

a)

3.43 x 1046 moles

b)

0.0529 moles

c)

0.0948 moles

d)

10.5 moles

42.

How many atoms are present in a 0.0254 mole sample of gold?

a)

0.25 atoms

b)

1.528 x 1022 atoms

c)

4.22 x 10-25 atoms

d)

5 atoms

43.

Vitamin C, also known as ascorbic acid, is water soluble and cannot be produced by the human body. Each day, a person's diet should include a source of Vitamin C, such as orange juice. Ascorbic acid has a molecular formula of C6H8O6 and a molar mass of 176 grams per mole.

Determine the number of moles of vitamin C in an orange that contains 0.171 grams of vitamin C.

a)

30.1 moles

b)

1030 moles

c)

.000971 moles

d)

.0001 mole

44.

What is the molar mass of calcium hydroxide, Ca(OH)2?

a)

74.1 g/mole

b)

57.1 g/mole

c)

58.1 g/mole

d)

57.1 u

45.

What is the total mass, in grams, of a 0.75 mole sample of SO2?

a)

16 g

b)

24 g

c)

32 g

d)

48 g

46.
Calculate the mass of iron in a sample of iron ore containing 2.61x1023 iron atoms.
a)
0.433g
b)
24.2g
c)
44g
d)
6.02g
47.

How many molecules are present in a 135 g sample of Teflon, which has a formula of C2F4?

a)

6.13 x 1023 molecules

b)

5.13 x 1023 molecules

c)

8.13 x 10 23 molecules

d)

9.13 x 1023 molecules

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