Question

Please give me the answer.
I will mark you as a Brainli-
-st.
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Answer 1

Answer: iron plus water gives iron oxide + hydrogen

iron + copper sulphate gives iron sulphate + copper

barium chloride + sodium sulphate gives barium sulphate + sodium chloride

Copper + oxygen gives copper oxide

Ferrous sulphate on heating gives ferric oxide Sulphur dioxide and sulphur trioxide

Quicklime +water gives slaked lime

Explanation:

3Fe+4H20➡️ Fe3O4+4H2O

Fe+CuSO4 ➡️ FeSO4+Cu

BaCl2+Na2SO4➡️BaSO4+2NaCl

2Cu+O2➡️2CuO

2FeSO4➡️Fe2O3+SO2+SO3

CaO+H2O➡️Ca(OH)2

Hope it helps