Question

which of these are element , compound , and mixture air , sugar, tin, copper, and carbon dioxide​

Answer 1

Answer:

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.

Explanation:

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Answer 2

Correct Question :

Which of these are element , compound , and mixture :-

1. Air
2. Sugar
3. Tin
4. Copper
5. Carbon dioxide

Answer :

1. Air → Mixture

Explanation :

Air is said to be a mixture because the constituents are uniformly mixed and it has the same properties throughout.

2. Sugar → Compound

Explanation :

Sugar is said to be a compound because it consists of of elements ( Carbon, Hydrogen and Oxygen ) which are combined chemically and have a definite composition.

3. Tin → Element

Explanation :

Tin ( Sn ) is said to be an element because it cannot be broken down into simpler substances by any physical or ordinary chemical means.

4. Copper → Element

Explanation :

Copper ( Cu ) is said to be an element because it cannot be broken down into simpler substances by any physical ordinary chemical means.

5. Carbon dioxide → Compound

Explanation :

Carbon dioxide is said to be a compound because it consists elements which are combined chemically and have a definite composition. The constituents can only be separated by chemical means.