Question

1. A pure substance which cannot be broken into two or more simpler
substances by any known physical and chemical means.
2. The smallest unit of an element which shows all properties of
that element
3. A pure substance which is composed of two or more elements,
combined chemically in a fixed proportion by weight.
4. The substance whose constituents are present in any ratio.
5. The method used for separation of kerosene oil and water. Answer these ​

Answer 1

Answer:

1. element

2. atom

3.compound

4. impure substance

5.seperating funnel

Answer 2

Answer:

hlo Friend...

ANSWERS for your questions:

1. ELEMENT.
2. ATOM.
3. COMPOUND.
4. IMPURE SUBSTANCES.
5. SEPERATING FUNNEL.

EXPLANATION:-

1. A pure substance that has only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is an element.

2. An atom is the smallest unit of matter that retains all of the chemical properties of an element.

3. Compound is a pure substance that consists of atoms of two or more elements combined together chemically in a definite proportion by weight.

4. An impure substance is defined as the substance which has particles of other substances mixed in it. Their constituents can be separated by physical means.

5. Separating funnel is used to separate the mixture of two immiscible liquids. Kerosene oil and water do not mix with each other and form two separate layers. ... The heavier liquid (water) forms the lower layer whereas the lighter liquid forms the upper layer (kerosene). Thus, the water is first collected in the beaker.

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