Science, asked by 68568, 7 months ago

give one example each of a chemical reaction showing the following characteristics
a. evolution of a gas
b. change of colour
c. formation of precipitate
d. change of state from liquid to gas
e. change of state from gas to liquid​

Answers

Answered by Anonymous
1

An arrow pointing downwards in a chemical reaction shows

(a) evolution of gas

(b) formation of precipitae

(c) oxidation

(d) displacement

ANSWER:

(b) formation of precipitate

In a chemical reaction, an arrow pointing downwards shows the formation of a precipitate and an arrow pointing upwards shows the evolution of a gas.

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