1. Dangerous to the environment
Question 1
What do each of the hazard warning symbols below mean?
Dangerous to the environment
Flammable
Toxic
Corrosive

2. Question 2
Draw a line to match the name of the separation technique to the type of mixture it is used to separate.

3. Question 3 Name all the elements present in the compounds below:
a) magnesium bromide.
b) Calcium sulfate
Magnesium and bromine.
Calcium, sulfur and oxygen

4. Question 4 Match the word to the definition. Solution Solvent Solute
The liquid that a substance dissolves in.
Solution
The substance which dissolves in a liquid.
Solvent
The special mixture formed when a substance dissolves in a liquid.
Solute

5. Question 5 Which of the following two compounds is soluble in water?
Calcium carbonate or lead (II) nitrate
HINT – Use the data booklet p8
lead (II) nitrate

7. Question 6
B – potassium sulphite

8. Question 7 6

9. Question 8
In the experiments below, chalk reacts with acid. The same mass of chalk and the same acid is used in all 4 experiments.
Which experiment would take the longest time to finish. B

10. Question 9
Matthew added 0.1g manganese dioxide to hydrogen peroxide solution and oxygen was produced. Manganese dioxide is a catalyst.
What is a catalyst?
What will be the mass of the manganese dioxide at the end of the reaction?
A catalyst is a substance which speeds up a chemical reaction and can be recovered unchanged at the end of the reaction (it is not used up itself).
0.1 g (A catalyst is not used up in a reaction).

11. Question 10
Which curve below shows the slowest reaction? How do you know this?
Large chips (green curve)
- Least steep slope.

12. Question 11 + - nucleus 1 shells nucleus 1
Complete the table of information about the 3 subatomic particles. + 1
nucleus -
shells
nucleus 1
No charge

13. Question 12 C5H10O2 (in any order)
What is the formula for the molecule shown below?
HINT – Count each type of atom
C5H10O2 (in any order)

14. Question 13 CCl4 or Cl4C What is the formula for carbon tetrachloride?
HINT – Use the prefix
CCl4 or Cl4C

15. Question 14 Potassium oxide S K O V 1 2 S 2 1 D 2 1 F K2O
What is the formula for potassium oxide?
HINT – Use SVSDF (since no prefix or diagram).
Potassium oxide
S K O
V 1 2
S 2 1
D 2 1
F K2O

16. Question 15 Calcium sulphide S Ca S V 2 2 S 2 2 D 1 1 F Ca S
What is the formula for calcium sulfide?
HINT – Use SVSDF (since no prefix or diagram).
Calcium sulphide
S Ca S
V 2 2
S 2 2
D 1 1
F Ca S

17. Question 16 Carbon dioxide Oxygen Hydrogen
Match the gas to the correct test used to identify it.
Carbon dioxide
Burns with a squeaky pop
Oxygen
Turns limewater cloudy
Hydrogen
Relights a glowing splint

18. Question 17
Select the correct labels to complete the fractional distillation diagram below.
Smallest carbon chain
Most flammable
Least viscous
Least flammable
Most viscous
Longest carbon chain

19. Question 18
0.8g

20. Question 19
Match the substance to the chemical which is used to test for it.
iodine
glucose
universal indicator
starch
acid
limewater
carbon dioxide
Benedict’s solution

21. period (row) OR group (column)
Question 20
Select the correct answer to complete the statement below.
Elements in the same __________________ have similar chemical properties.
group (column)
period (row) OR group (column)

22. Question 21
Methane reacts with oxygen to form carbon dioxide and water.
In this reaction is water a reactant or a product?
Write the word equation for this reaction.
product
methane + oxygen -> carbon dioxide + water

23. Question 22 Al3+ Cl- Li+ P3- Aluminium Chloride Lithium Phosphide
Using the electron arrangement information from the data booklet write the symbol for the following ions (e.g. N3-)
Aluminium
Chloride
Lithium
Phosphide
Al3+
Cl-
Li+
P3-

24. Question 23
What are the products of complete combustion of a hydrocarbon (when oxygen is plentiful)?
What different products could be formed during incomplete combustion of a hydrocarbon (when oxygen is limited)?
Carbon dioxide and water
Carbon monoxide or soot (unburned carbon)

25. Question 24
Fossil fuels are described as a finite source of energy. What does this mean?
They will run out eventually

26. Question 25
What are the two main reasons why the amount of carbon dioxide in our atmosphere is increasing?
More trees are being cut down. This means that there are less trees to take in carbon dioxide for photosynthesis so more carbon dioxide stays in the air.
We are burning more fossil fuels and this makes carbon dioxide gas.

27. Question 26 Draw the full structural formula for propane and propene.

28. Question 27 Which pH numbers correspond to: acids? alkalis/bases? 1-6
8-14

29. Question 28 Name 3 methods used to test the pH of a substance.
pH paper
Universal indicator
pH meter

30. Question 29 What happens to the pH of alkali as acid is added to it?
What happens to the pH of acid as alkali/base is added to it?
It decreases towards pH 7
It increases towards pH 7

31. Name of acid neutraliser/ reacting chemical
Question 30
Name the salts formed in the reactions below:
Name of acid
Name of acid neutraliser/ reacting chemical
Name of salt
sulfuric acid
sodium oxide
hydrochloric acid
calcium hydroxide
nitric acid
magnesium
phosphoric acid
potassium carbonate
carbonic acid
magnesium oxide
Sodium sulfate
Calcium chloride
Magnesium nitrate
Potassium phosphate
Magnesium carbonate