Question

Balance the following chemical equations by the hit and trial method
a. Na +H20 — NaOH + H2
b. C2H5OH +02 — * CO2 +H20
Al + H2O -> Al2O3 + H2
Ca(NO3)2 →→ CaO + O2 + NO2
HNO3 -> H2O + NO2 + O2
Ba + H20 — Ba(OH)2 + H2
Fe + H20 F Fe3O4 + H2
ZnS + O2 → ZnO + SOZ
Al + HCI —— AlCl3 + H2
FeS2 + O2 — Fe2O3 + SO2
​

Answer 1

Answer:

a)

2Na +2H2O — 2NaOH + H2

b)

C2H5OH + 2O2 — 2CO2 + 3H2O

c)

2Al + 3H2O — Al2O3 + 3H2

d)

2Ca(NO3)2 — 2CaO + O2 + 4NO2

e)

4HNO3 —2H2O + 4NO2 + O2

f)

Ba + 2H2O — Ba(OH)2 + H2

g)

3Fe + 4H20 — Fe3O4 + 4H2

h)

2ZnS + 3O2 — 2ZnO + 2SO2

i)

2Al + 6HCI — 2AlCl3 + 3H2

j)

4FeS2 + 11O2 — 2Fe2O3 + 8SO2

hope this will help you

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