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Write balanced chemical equation for …

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Write balanced chemical equation for the following statements:

(i) NaOH solution is heated with zinc granules.

(ii) Excess of carbon dioxide gas is passed through lime water.

(iii) Dilute sulphuric acid reacts with sodium carbonate.

(iv) Egg shells are dropped in hydrochloric acid.

(v) Copper (II) oxide reacts with dilute hydrochloric acid.

Posted by Vivek Kr 6 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Chanika Bhambri 6 years, 9 months ago

(i)2NaOH(aq) + Zn(s) -> Na₂ZnO₂+ H_2(g)

(ii) CO₂ + Ca(OH)₂ -> CaCO₃ (milky)+H₂O

CaCO₃ + H₂O +CO₂ -> Ca (HCO₃)₂ (milkiness disappears)

(iii) H₂SO₄ + Na₂CO₃ -> Na₂SO₄ + H₂O +CO₂

(iv) CaCO₃ + 2HCl -> CaCl₂ +H₂O+CO₂

(v) CuO + 2HCl -> CuCl₂ + H₂O

2Thank You

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