1) When magnesium reacts with water, what are the products of the reaction? a) oxygen + water  b) magnesium hydroxide + hydrogen  c) magnesium oxide + water d) magnesium oxide + hydrogen 2) if you use sulphuric acid the name of the salt formed will always end in.........  a) sulphuric  b) chloride  c) sulphate d) hydroxide 3) the control variable is........... a) The variable you change b) the variable you measure c) the variable you keep the same 4) Calcium is more reactive than magnesium  a) true  b) false 5) Copper is more reactive than gold a) true b) false 6) Group one metals decrease in reactivity down the group  a) true  b) false

metals and acids/water

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