1. A. Write chemical equations of the following and balance
(a) Carbon + oxygen Carbon dioxide
(b) Hydrogen + Chlorine Hydrogen chloride
(c) Barium + Sodium- Barium + sodium
chloride sulphate sulphate chloride
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Answer:
c + o2 gives co2
h2 + cl2 gives 2hcl
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Balanced chemical equations of the following are:
- (a) Carbon + Oxygen --------> Carbon dioxide
Carbon atom makes covalent bonds with 2 atom of Oxygen to form Carbon dioxide.
C + O₂---------> CO₂
- (b) Hydrogen + Chlorine ----------> Hydrogen chloride.
2 atom of Hydrogen is bonded with 2 atom of chloride to form 2 molecule of Hydrogen chloride.
H₂ + Cl₂ ---------> 2 HCl
- (c) Barium chloride +Sodium sulphate -------->Barium sulphate + sodium chloride
Sodium sulphate in aqueous state reacts with an aqueous solution of Barium chloride to form ppt of Barium sulphate with aqueous Sodium chloride.
BaCl₂ + Na₂SO₄ ---------> BaSO₄ + 2 NaCl
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