WorksheetsIonic bonds, balancing, molar mass
Total questions: 15
Worksheet time: 18mins
Name
Class
Date
1.
What is the molar mass of CO2?
a)
12
b)
16
c)
32
d)
44
2.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
3.
How many particles are in a mole?
a)
602
b)
602 million
c)
602 moles
d)
6.02 x 1023
4.
Calculate the molar mass for Al(OH)3
a)
78.0 g/mol
b)
72 g/mol
c)
28 g/mol
d)
25 g/mol
5.
Aluminum will react spontaneously with oxygen in the air to form aluminum oxide. Write the formula for the compound that is produced in this reaction.
a)
AlO
b)
Al2O3
c)
O3Al2
d)
Al6O3
6.
Name the compound from it's formula: BaI2
a)
Iodine barium
b)
Iodine bariumide
c)
Barium iodine
d)
Barium iodide
7.
Which of the following is the correct ionic formula for calcium sulfide?
a)
Ca2S2
b)
CaS
c)
S2Ca2
d)
SCa
8.
Which is NOT a diatomic molecule?
a)
Fluorine
b)
Nitrogen
c)
Boron
d)
Bromine
9.
Identify the type of chemical reaction demonstrated by this equation:
KClO3 → KCl + O2
KClO3 → KCl + O2
a)
decomposition
b)
combustion
c)
compositions
d)
single replacement
10.
Identify the type of reaction shown by this chemical equation:
Al + HCl → AlCl3 + H2
Al + HCl → AlCl3 + H2
a)
single replacement
b)
composition
c)
double replacement
d)
decomposition
11.
Which is the correctly balanced equaition?
a)
Cl2 + 2NaI → 2NaCl + I2
b)
Cl2 + 2NaI → NaCl + 2I2
c)
Cl2 + NaI → NaCl + I2
d)
2Cl2 + NaI → 2NaCl + I2
12.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number to the left of a formula.
13.
Which side of a chemical equation is the product side?
a)
Left (before the arrow)
b)
Right (after the arrow)
14.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
15.
Balance this equation-
__P4 + __O2 --> __P2O3
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
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