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Rashid [163]
4 years ago
13

Classify these substances. More than one answer may apply in each case.

Chemistry
1 answer:
enyata [817]4 years ago
3 0

Answer: H_2 :  Pure substance, Element

O_2 : Pure substance , Element

H_2O:  Pure substance, Compound

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: H-2 and O_2

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: H_2O

Heterogeneous Mixture : Mixture that has its different components mixed unevenly within the substance . Example: Air

Homogeneous Mixture : Mixture that has its different components mixed evenly within the substance. Example: sugar dissolved in water

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