WorksheetsC3 Quantitative Chemistry Combined Foundation
Total questions: 14
Worksheet time: 8mins
Name
Class
Date
1.
What is the relative formula mass of CO2?
a)
44
b)
32
c)
16
d)
56
2.
Calculate the molar mass of Magnesium Chloride - MgCl2
a)
71
b)
35.5
c)
59.5
d)
95
3.
Which of the following has a positive charge?
a)
proton
b)
neutron
c)
electron
4.
A chemical formula is a combination of symbols and numbers that represent a compound.
a)
True
b)
False
5.
Oxygen is an example of
a)
an element.
b)
a compound.
c)
a substance.
d)
a mixture.
6.
Which of the following is an example of a compound?
a)
sugar
b)
hydrogen
c)
boron
d)
apple juice
7.
The ________________ is best described as particles are neither created nor destroyed during a physical or chemical change.
a)
Law of Conservation of Mass
b)
Chemical Reaction
c)
Chemical Equation
d)
Change in Thermal Energy
8.
Which of the following is an example of a balanced equation?
a)
Na + 2Cl -> NaCl
b)
2Fe + S -> Fe2S
c)
CO2 + H2O -> CH4 + 2O2
d)
H2 + O2 -> H2O
9.
What particles of an atom are found in the nucleus?
a)
proton and electron
b)
electron and neutron
c)
proton and neutron
d)
protons only
10.
During a chemical reaction, a gas is produced which escapes into the air. Does the mass of the product appear to..
a)
increase
b)
decrease
c)
stay the same
11.
When magnesium burns in oxygen from the air, magnesium oxide is produced. The mass of the magnesium oxide is...
a)
greater than the magnesium to start with
b)
less than the magnesium to start with
c)
the same as the magnesium to start with
12.
What is the correct state symbol for a substance that is a gas?
a)
G
b)
g
c)
(ga)
d)
(g)
13.
What is the correct state symbol for magnesium?
a)
(mg)
b)
(s)
c)
(g)
d)
(aq)
14.
What is the correct state symbol for a solution of sodium chloride?
a)
NaCl
b)
SC
c)
dissolved
d)
(aq)
100 %
