WorksheetsC3 AQA KKI
Total questions: 63
Worksheet time: 21mins
Name
Class
Date
1.
What is the atomic mass for carbon?
a)
12
b)
6
c)
24
d)
1
2.
How many Chlorine atoms in MgCl2?
a)
1
b)
2
c)
3
d)
4
3.
What is the formula mass for water (H2O)
a)
18
b)
3
c)
16
d)
34
4.
What is the formula mass for carbon dioxide (CO2)
a)
44
b)
12
c)
16
d)
32
5.
What is relative formula mass?
a)
The mass of of at atoms in an element or compound
b)
The mass of one atom
c)
The number of protons in a compound
d)
The number of electrons in a compound
6.
What is avogadro's constant?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
7.
What is avogadro's constant?
a)
How many atoms in one mole of something
b)
How many atoms in 10g
c)
How many protons in the nucleus
8.
How many atoms would you find in 1 mole of it?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
9.
How do you calculate the number of moles you have?
a)
Mass ÷ formula mass
b)
Mass x formula mass
c)
formula mass ÷ mass
10.
How do you calculate the mass of something you have given moles and formula mass?
a)
Moles x formula mass
b)
Moles ÷ formula mass
c)
formula mass ÷ Moles
11.
What is the conservation of mass in a chemical reaction?
a)
The mass of the reactants must equal the mass of the products
b)
The mass of the reactants will be more than the products
c)
The mass of the products will be more than the reactants
12.
Why does it something appear a reaction loses mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
13.
Why does it something appear a reaction gains mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
14.
How many moles are there here? 2HCl
a)
1
b)
2
c)
3
d)
4
15.
How many moles are there here? 4H20
a)
1
b)
2
c)
3
d)
4
16.
When does a reaction stop?
a)
When one of the reactants runs out
b)
When both reactants have run out
c)
When the temperature drops
d)
When it gets too hot
17.
How do you calculate the concentration of a solution?
a)
Mass of solute ÷ volume of solvent
b)
Mass of solute x volume of solvent
18.
What is a solvent?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
19.
What is a solute?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
20.
How many cm3 fit into a dm3?
a)
10
b)
100
c)
1000
d)
10000
21.
How do you get from cm3 to dm3?
a)
÷ 10
b)
÷ 100
c)
÷ 1000
d)
÷ 10000
22.
What is the atomic mass for carbon?
a)
12
b)
6
c)
24
d)
1
23.
How many Chlorine atoms in MgCl2?
a)
1
b)
2
c)
3
d)
4
24.
What is the formula mass for water (H2O)
a)
18
b)
3
c)
16
d)
34
25.
What is the formula mass for carbon dioxide (CO2)
a)
44
b)
12
c)
16
d)
32
26.
What is relative formula mass?
a)
The mass of of at atoms in an element or compound
b)
The mass of one atom
c)
The number of protons in a compound
d)
The number of electrons in a compound
27.
What is avogadro's constant?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
28.
What is avogadro's constant?
a)
How many atoms in one mole of something
b)
How many atoms in 10g
c)
How many protons in the nucleus
29.
How many atoms would you find in 1 mole of it?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
30.
How do you calculate the number of moles you have?
a)
Mass ÷ formula mass
b)
Mass x formula mass
c)
formula mass ÷ mass
31.
How do you calculate the mass of something you have given moles and formula mass?
a)
Moles x formula mass
b)
Moles ÷ formula mass
c)
formula mass ÷ Moles
32.
What is the conservation of mass in a chemical reaction?
a)
The mass of the reactants must equal the mass of the products
b)
The mass of the reactants will be more than the products
c)
The mass of the products will be more than the reactants
33.
Why does it something appear a reaction loses mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
34.
Why does it something appear a reaction gains mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
35.
How many moles are there here? 2HCl
a)
1
b)
2
c)
3
d)
4
36.
How many moles are there here? 4H20
a)
1
b)
2
c)
3
d)
4
37.
When does a reaction stop?
a)
When one of the reactants runs out
b)
When both reactants have run out
c)
When the temperature drops
d)
When it gets too hot
38.
How do you calculate the concentration of a solution?
a)
Mass of solute ÷ volume of solvent
b)
Mass of solute x volume of solvent
39.
What is a solvent?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
40.
What is a solute?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
41.
How many cm3 fit into a dm3?
a)
10
b)
100
c)
1000
d)
10000
42.
How do you get from cm3 to dm3?
a)
÷ 10
b)
÷ 100
c)
÷ 1000
d)
÷ 10000
43.
What is the atomic mass for carbon?
a)
12
b)
6
c)
24
d)
1
44.
How many Chlorine atoms in MgCl2?
a)
1
b)
2
c)
3
d)
4
45.
What is the formula mass for water (H2O)
a)
18
b)
3
c)
16
d)
34
46.
What is the formula mass for carbon dioxide (CO2)
a)
44
b)
12
c)
16
d)
32
47.
What is relative formula mass?
a)
The mass of of at atoms in an element or compound
b)
The mass of one atom
c)
The number of protons in a compound
d)
The number of electrons in a compound
48.
What is avogadro's constant?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
49.
What is avogadro's constant?
a)
How many atoms in one mole of something
b)
How many atoms in 10g
c)
How many protons in the nucleus
50.
How many atoms would you find in 1 mole of it?
a)
6.02 x 1023
b)
6 x 1023
c)
6.02 x 1018
d)
6.02
51.
How do you calculate the number of moles you have?
a)
Mass ÷ formula mass
b)
Mass x formula mass
c)
formula mass ÷ mass
52.
How do you calculate the mass of something you have given moles and formula mass?
a)
Moles x formula mass
b)
Moles ÷ formula mass
c)
formula mass ÷ Moles
53.
What is the conservation of mass in a chemical reaction?
a)
The mass of the reactants must equal the mass of the products
b)
The mass of the reactants will be more than the products
c)
The mass of the products will be more than the reactants
54.
Why does it something appear a reaction loses mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
55.
Why does it something appear a reaction gains mass?
a)
A gas is given off as a product
b)
A given is taken in as a reactant
c)
In breaks down
d)
It changes colour
56.
How many moles are there here? 2HCl
a)
1
b)
2
c)
3
d)
4
57.
How many moles are there here? 4H20
a)
1
b)
2
c)
3
d)
4
58.
When does a reaction stop?
a)
When one of the reactants runs out
b)
When both reactants have run out
c)
When the temperature drops
d)
When it gets too hot
59.
How do you calculate the concentration of a solution?
a)
Mass of solute ÷ volume of solvent
b)
Mass of solute x volume of solvent
60.
What is a solvent?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
61.
What is a solute?
a)
The liquid in which something dissolves into
b)
The solid that dissolves
c)
The solution at the end
62.
How many cm3 fit into a dm3?
a)
10
b)
100
c)
1000
d)
10000
63.
How do you get from cm3 to dm3?
a)
÷ 10
b)
÷ 100
c)
÷ 1000
d)
÷ 10000
100 %
