Q# 11/ carbon dioxide M34(c) (i) hydrogen • iron sulphide or are insufficient • ‘H2’ ‘H’ accept chloride’ 1 (L6) ‘copper (ii) sulphur answers may be in either order • 1 (L6) both answers are required for the mark oxygen • 1 (L6) 1 (L6) (b) any one from or or are insufficient ‘S’ ‘O’ ‘O2’ the iron reacted or combined with • answers can be in either order sulphur (iii) 5 accept iron gained sulphur’ ‘the 1 (L6) or was to the iron’ ‘sulphur Q# 12/ M29. (a) (i) any one accept iron has joined with the ‘the from sulphur’ iron • do not accept has mixed with the ‘iron copper • sulphur’ accept calcium do not accept or iron a new ‘sulphur 1 (L5) layer’ (ii) any one from the sulphur had mass • sulphur • accept sulphur weighed 0.8 g’ ‘the chlorine • 1 (L6) accept or ‘oxygen’ ‘carbon’ (c) copper chloride 1 (L5) 1 (L6) (iii) any two from [5] calcium carbonate • calcium •
Q# 11/ M34(c) (i) hydrogen ‘H2’ or ‘H’ are insufficient 1 (L6) (ii) • sulphur 1 (L6) • oxygen 1 (L6) ‘S’ or ‘O’ or ‘O2’ are insufficient answers can be in either order (iii) 5 1 (L6) Q# 12/ M29. (a) (i) any one from • iron • copper accept calcium 1 (L5) (ii) any one from • sulphur • chlorine accept ‘oxygen’ or ‘carbon’ 1 (L5) (iii) any two from • calcium carbonate • calcium • carbon dioxide • iron sulphide accept ‘copper chloride’ answers may be in either order both answers are required for the mark 1 (L6) (b) any one from • the iron reacted or combined with sulphur accept ‘the iron gained sulphur’ or ‘sulphur was to the iron’ accept ‘the iron has joined with the sulphur’ do not accept ‘iron has mixed with the sulphur’ do not accept ‘sulphur or iron a new layer’ • the sulphur had mass accept ‘the sulphur weighed 0.8 g’ 1 (L6) (c) copper chloride 1 (L6) [5]
sec1_sci_c7p_eq_1st_62marks_atoms_elements_only_14pgs.docx