Question

plz answer my all question in the given pdf

e03d9022d84f37ff5ad55a9a2db3207b.pdf

Answer 1

Answer:

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Explanation:

a. Chemical change . If you break the match stick you can again burn it . If you doesn't break after burning it will not burn again .

b. Physical Change . In his change no new substances is formed and this process is reversible by vaporization .

c. Physical Change . No new substances is formed and it is reversible .

d. Chemical Change . New substances is formed & it is irreversible .

e. Chemical Change. This process cannot be changed once again again , it is irreversible .

f . Chemical Change . Because used fuel cannot be used once again it is irreversible .

g. Physical Change . No , new substances is formed , it is reversible .

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