Question

Which of the following materials fall in the category of a pure substance?

a) Ice b) Milk c) Iron d) Hydrochloric acid

e) Calcium oxide f) Mercury g) Brick h) Wood.

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Answer 1

Explanation:

 Ice, iron, calcium oxide and mercury are pure substances since they contain particles of only one kind of matter.

Answer 2

Answer:

1)ice 2)milk 3)hydrochloric acid