Question

7. Write the balanced chemical equations for the following reactions.
(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water
(b)
Zinc + Silver nitrate + Zinc nitrate + Silver
(c) Aluminium + Copper chloride → Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride
Irita +​

Answer 1

Answer:

(a) Ca (OH)2 + CO2 → CaCO3 + H2O

(b) Zn + 2AgNO3 → Zn(NO3)2 + 2 Ag

(c) 2Al + 3 CuCl2 → 2AlCl3 + 3 Cu

(d) BaCl2 + K2SO4 → BaSO4 + 2KCl

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Answer 2

Answer:

Question :-

Write the balanced chemical equation for the following reactions .

Solution :-

(a) calcium hydroxide + carbon dioxide = calcium carbonate + water

Ca(OH)2 + CO2 = CaCo3 + H2o

(b) Zinc + silver nitrate = zinc nitrate + silver

Zn + 2AgNo3 = Zn(No3)2 + 2Ag

(c) Aluminium + copper chloride = Aluminium chloride + copper

2Al + 3CuCl2 = 2AlCl3 + Cu

(d) Barium Chloride + Potassium Sulphate = Barrium Sulphate + Potassium Sulphate

BaCl2 + K2So4 = BaSo4 + 2KCl

for balancing an equation u should to know the symbolic representation of elements

then after try to get equal mass of the elements in reactant as well as product .

in LHS side there are reactant and in RHS. side there are product which are formed after reaction of elements .