Question

owing sections,
uestions
1. What is meant by a substance?
2. List the points of differences
between homogeneous and
heterogeneous mixtures.
What is a Solution?
plution is a homogeneous mixture of two
You come across various​

Answer 1

Answer:-

1. Ans.

A substance is a matter that has definite properties and composition. Every pure compound and element is a substance.

2. Ans.

Homogeneous mixture

Homogeneous mixtureHeterogeneous mixture

Homogeneous mixtureHeterogeneous mixtureIt has a uniform composition It has a non-uniform composition

Homogeneous mixtureHeterogeneous mixtureIt has a uniform composition It has a non-uniform compositionIt has only one phase There are two or more phases

Homogeneous mixtureHeterogeneous mixtureIt has a uniform composition It has a non-uniform compositionIt has only one phase There are two or more phasesIt can’t be separated out physically It can be separated out physically

Homogeneous mixtureHeterogeneous mixtureIt has a uniform composition It has a non-uniform compositionIt has only one phase There are two or more phasesIt can’t be separated out physically It can be separated out physically‘homo’ means the same ‘hetero’ means different

Homogeneous mixtureHeterogeneous mixtureIt has a uniform composition It has a non-uniform compositionIt has only one phase There are two or more phasesIt can’t be separated out physically It can be separated out physically‘homo’ means the same ‘hetero’ means differentExample: a mixture of alcohol and water Example: a mixture of sodium chloride and sand.

3. Ans.

Solution, in chemistry, a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible.

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Answer 2

Answer:

1)A specific sample of matter, either a pure element or a pure compound

2) Homogeneous mixture: a mixture in which the particles not the various substances.

Heterogeneous mixture: a mixture in which the particles of the various substances are not distributed uniformly and can be seen easily.

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