Question

Please tell the correct answer fastly and please don't spam it ​

Answer 1

Answer:

1) FALSE

2)FALSE

3)TRUE

4)FALSE

5)TRUE

corrected statement :-

1 When wood is cut into firewood, this is a physical change. The composition of the wood stays the same. In a physical change, the substance usually can be changed back into its original form.

2 Cutting a log into wood into pieces is a physical change. Formation of manure from leaves is a chemical change. Iron and rust are different substances.

3 Iron metal gets rusted in the presence of oxygen and moisture. A coating of zinc protects iron from oxygen and moisture present in air. Due to this, iron pipes coated with zinc do not rust easily

4 Iron and rust are different substances. Rust is iron oxide.

5 The composition of steam will be the same as liquid after condensing of steam. So, now we can say that the statement mentioned in question is a true statement. Condensation of steam is not a chemical change, but actually it is a physical change.

Answer 2

Explanation:

a) False

b) False

c) True

d) False

e) True

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