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

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

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

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

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

Question 6 B – potassium sulphite

Question 7 6

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

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).

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

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

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)

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

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

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

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

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

Question 18 0.8g

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

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)

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

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-

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)

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

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.

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

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

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

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

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