Question

what will be the equation for
A gas is evolved.​

Answer 1

Answer:

Neutralization Reactions

Acids and bases react chemically with each other to form salts. A salt is a general chemical term for any ionic compound formed from an acid and a base. In reactions where the acid is a hydrogen ion containing compound and the base is a hydroxide ion containing compound, water is also a product. The general reaction is as follows:

acid + base→water + salt(7.8.1)

The reaction of acid and base to make water and a salt is called neutralization. Like any chemical equation, a neutralization chemical equation must be properly balanced. For example, the neutralization reaction between sodium hydroxide and hydrochloric acid is as follows:

NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(ℓ)(7.8.2)

with coefficients all understood to be one. The neutralization reaction between sodium hydroxide and sulfuric acid is as follows:

2NaOH(aq)+H2SO4(aq)→Na2SO4(aq)+2H2O(ℓ)(7.8.3)

Answer 2

Answer:

Decomposition Reaction

CaCO3---------> CaO + CO2

Explanation:

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