Question

Write balanced chemical equations for the following:
a. Dilute sulphuric acid reacts with aluminium powder.
b. Dilute hydrochloric acid reacts with sodium carbonate
c. Carbon dioxide is passed through lime water.​

Answer 1

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a)Dilute sulphuric acid reacts with aluminium powder.

Dilute sulphuric acid + Aluminium powder —> Aluminum Sulphate + Hydrogen gas.

3H2SO4 + 2Al —> Al2(SO4)3 + 3H2

b)Dilute hydrochloric acid reacts with sodium carbonate

2HCl + Na2CO3 → 2NaCl + H20 + CO2

c) Carbon dioxide is passed through lime water.

Ca(OH)2(aq) + CO2(g) → CaCO3(s) +H2O.

Answer 2

a. 2AL+3H2 SO4--->AL2 (SO4)3+3H2

b.Na2 CO3 + 2HCl--->2NaCl+ 2H2O+CO2