4. Write chemical equations for the following word equations
and balance them.
(a) Carbon + Oxygen + Carbon dioxide
(b) Nitrogen + Oxygen → Nitrogen monoxide
(c) Calcium + Nitrogen → Calcium nitride
(d) Calcium oxide + Carbon dioxide → Calcium carbonate
(e) Magnesium + Sulphuric acid →
Magnesium sulphate + Hydrogen
(f) Sodium reacts with water to form sodium hydroxide
and hydrogen.
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Answer:
(a) C + O2 ---> Co2
(b) N2 + O2 ---> 2No
(c) Ca + N2 ---> Ca3N2
(d) CaO + Co2 ---> CaCo3
(e) Mg + H2So4 ---> MgSo4 + H+
(f) Na + H20 ---> NaoH + H+
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