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Chemical Change

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Question

Give one example of a chemical reaction showing change of state from Gas to Liquid

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Solution

When hydrogen and oxygen gas react they form water molecule
2H₂ + O₂ â†’2H₂O
Gas Gas Liquid

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Similar questions

Q. 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

Give 1 example which illustrates the following characteristics of a chemical reaction

(I) evolution of gas

(II) change of colour

Q. (a) What is meant by chemical reaction? Explain with the help of an example.
(b) Give one example each of a chemical reaction characterised by:
(i) evolution of a gas
(ii) change in colour
(iii) formation of a precipitate
(iv) change in temperature
(v) change in state.

Give one example each of which illustrates the following characteristics of a chemical reaction:

(a) Evolution of a gas
(b) Change of colour

______ is an example of a substance that can change its state from solid to liquid to gas.

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