Science, asked by swayam4773, 9 months ago

(a) What is meant by a chemical reaction ? Explain with the help of an example.
(6) Give one example each of a chemical reaction characterised by :
(i) evolution of a gas
(ii) change in colour
(11) formation of a precipitate
(10) change in temperature
(1) change in state.

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Answered by manojshrivstv

1

Answer:

the answer is

Answered by Anonymous

0

Answer:

A chemical reaction happens when one or more chemicals are changed into one or more other chemicals. Examples: iron and oxygen combining to make rust. vinegar and baking soda combining to make sodium acetate, carbon dioxide and water. ... many reactions that happen inside living things.

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