1) What is an atom? a) a small blob b) a tiny thing c) what stuff is made of d) Smallest part of an element that can exist 2) What is the equation for the complete combustion of methane? a) propane + oxygen -------> carbon dioxide + water b) Methane + hydrogen -------> carbon dioxide + water c) Methane + oxygen -------> carbon dioxide + salt d) Methane + oxygen -------> carbon dioxide + water 3) Give the 4 state symbols. a) (s) (l) (g) (a) b) (d) (l) (g) (aq) c) (s) (y) (g) (aq) d) (s) (l) (g) (aq) 4) What happens in an oxidation reaction? a) Oxygen is added b) Oxygen is removed c) hydrogen is added d) Oxygen is changed 5) What is used to determine the pH of a substance? a) A chemical b) An indicator c) A gear d) An acid 6) What colour does universal indicator go in an acid? a) green b) pink c) purple d) Red 7) What gas is produced when a metal reacts with an acid? a) oxygen b) nitrogen c) Hydrogen d) carbon dioxide 8) Product formed when an acid and alkali react a) Water and a solid b) Water and air c) Water and a salt d) Water and a acid 9) What happens to the temperature in an exothermic reaction? a) decreases b) Increases c) stay the same d) nothing 10) What is copper oxide heated with to displace copper? a) Carbon b) Sand c) Oxygen d) hydrogen 11) What is heated to produce glass? a) Sand and limestone b) sodium carbonate and limestone c) Sand, sodium carbonate and brimstone d) Sand, sodium carbonate and limestone
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C2 Year 7 Reacll Quiz
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