Write a chemical equation for the following,
A, calcium reacts with water b, zinc sulphide is heated In air c, carbon dioxide gas is passed into lime water d, cinnabar is heated In air.

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Solution

Chemical Equation-

A. Ca + 2H₂O → Ca(OH)₂ + H₂
B. 2Zn + O₂→ 2ZnO(heating )
C. CaCO₃ + CO₂ + H₂O → Ca²⁺ + 2HCO₃^-
D. 2 HgS + 2 O₂ → Hg₂ + 2 SO₂ (heating )

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Similar questions

Write a balanced chemical equation for each of the following :

1. Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.

2. Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas.

3. Methyl alcohol burns in air to form carbon dioxide and water.

4. Liquid hydrogen peroxide decomposes to give water and oxygen gas.

5. Aluminium hydroxide reacts with sulphuric acid to give ammonium sulphate and water.

6. Aluminium sulphate solution reacts with sodium hydroxide to form a precipitate of aluminium hydroxide.

(a) What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.

(b) What happens when carbon dioxide gas is passed through lime water?

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