Question

Classify the following substances as an element, Compound , Pure Substance or a
Mixture.

Element
Compound
PureSubstance
mixture




Diamond, Oxygen, Water, Soil, Gold,
Salad dressing, Copper, Sulphate,
Pure Air, Salt, Carbon Dioxide​

Answer 1

ANSWER

Elements →

The elements are regarded as the building blocks of the universe.

Sodium, Silver, Tin and Silicon are elements.

Compounds →

It is a pure substance made up of two or more elements chemically combined in a fixed proportion by mass.

Calcium carbonate, Methane and Carbon dioxide are compounds.

Mixture →

It is a substance containing two or more substance in any proportion.

Soil, Sugar, Coal, Air, and seawater are mixtures.

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Answer 2

Answer:

Elements -Copper, Gold ,

Compound -carbon dioxide, copper sulphate

Pure substances -Oxygen, Diamond ,water

Mixture - Salad dressing, Soil, pure air

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