Social Sciences, asked by rajneeshmehta78, 6 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 precipate
d) change of state from liquid to gas
e) change of state from gas to liquid
Ans fast I have to submit the work to my teacher ​

Answers

Answered by ayush31012008
1

Answer:

a) limestone age HCL reaction ( CO2 produced )

b) when copper reacts with oxygen, CO2, H20 it's colour changes from reddish brown to green

c) reaction of silver nitrate and potassium chloride form a precipate

d) don't know

e) don't know

Answered by jay419
1

Answer:

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