Question

Balance the following equations :
(a) H2 + O2 → H2O
(b) MnO2 + HCl → MnCl2 + H2 O + Cl2
(c) Pb(NO3) → PbO + NO2 + O2
(d) AgNO3 + NaCl → AgCl + NaNO3
(e) Ca(OH)2 + HNO3 → Ca(NO3)2 + H2O

Answer 1

Answer:

a) 2H2+O2 -> 2H2O

b) MnO2 +4HCl -> MnCl2 + 2H2O +Cl2

c) the question is wrong it should be like this --

2Pb(NO3)2 = 2PbO + 4NO2 + O2

d) the equation is already balanced

e) Ca(OH)2+2HNO3 -> Ca(NO3)2+2H2O

hope it helps.....

Answer 2

Answer:

i. 2H2+O2--->2H2O

ii.MnO2+4HCl--->MnCl2+2H20+Cl2

iv.it is already balanced

v. 2Ca(OH)2+4HNO3--->2Ca(NO3)2+4H2O

Explanation:

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