Question

Briefly explain the characteristics of chemical reaction with examples. (Who give me answer I mark it as Brainliest)​

Answer 1

Answer:

Some chemical reactions are characterised by the evolution of gas. For Ex:1)Reaction between zinc and dilute sulphuric acid to form hydrogen gas. 2)Reaction between sodium carbonate and dilute hydrochloric acid to form carbon dioxide gas. Some chemical reactions are characterised by the formation of precipitate.

Explanation:

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Answer 2

Explanation:

chemical reaction happens when one or more chemicals are changed into one or more other chemicals

examples

1: iron and oxygen combine to make rust

2: vinegae and baking soda combine to make sodium acetate ,carbon dioxide and water

3: thing burning or exploding