Question

State the type of reactions each of the following equations represent and balance the ones that are not balanced.
(a) Cl2 + 2KBr → 2KCl + Brz
(b) NaOH + HCl → NaCl + H2O
(c) 2HgO + 2Hg + O2
(d) Fe + CuSO4 → FeSO4 + Cu​

Answer 1

Answer:

a) Displacement reaction

Cl2+2HBr→2KCl+Br

b) Neutralisation reaction

NaOH+HCl→NaCl+H2O

c) Decomposition reaction

2HgO→2Hg+O2

d) Displacement reaction

Fe+CuSO4→FeSO4+Cu

e) Combination reaction

PbO2+SO2→PbSO4

f)Decomposition reaction

2KClO3→2KCl+3O2

g) Decomposition reaction

2H2O2→2H2O+O2

h) Double decomposition reaction

KNO3+H2SO4→HNO3+KHSO4

i) Displacement reaction

CuO+H2→Cu+H2O

j) Decomposition reaction

CaCO3→CaO+CO2

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