Write chemical equations for the following reactions.
a. Iron is heated with steam.
b. Lead oxide (PbO) is heated with coke.
C. Magnesium strip is added to hydrochloric acid.
d. Sodiun is kept in cold water.
e. Aluminium is added to copper sulphate solution
f. Sulphur is heated.
g. Carbon dioxide is passed through limewater.
h. Heating of copper sulphide to extract copper.
Answers
Answered by
4
Answer:
a. Fe+H20 gives Fe3O4 +H2
b.2PbO+C→2Pb+CO2 2 P b O + C → 2 P b + C O 2
c.Mg + 2HCl => MgCl2 + H2
d.2Na + 2H2O ==> 2NaOH + H2
e.CuSO4 + Al gives Al2(SO4)3 + Cu.
f.S + O2---> SO2
g.Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O.
h.Cu2S+O2 --> 2Cu+SO2
Answered by
0
Answer:
a. Fe+H20 gives Fe3O4 +H2
b.2PbO+C→2Pb+CO2 2 P b O + C → 2 P b + C O 2
c.Mg + 2HCl => MgCl2 + H2
d.2Na + 2H2O ==> 2NaOH + H2
e.CuSO4 + Al gives Al2(SO4)3 + Cu.
f.S + O2---> SO2
g.Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O.
h.Cu2S+O2 --> 2Cu+SO2
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