Question

E. Answer the following questions.
1. Why is air said to be made of matter?
2. What are molecules?
3. What is the difference in the way molecules are arranged in stone, water and a
4. Why do solids not flow?
5. When sugar is dissolved in water, the volume of water remains the same. Why
6. How can you make a saturated solution of salt in water?
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beton​

Answer 1

Answer:

1. air is said to be made of matter because air is also occupies space.
2. molecules are those substance which combined together and made a substance is called as a compound.
3. the difference between the way of molecules are arranged in stone water and the gas is that in the solid molecules the molecules are combined with each together and between than molecules no space will takes place and in liquid, liquid molecules are combined together but some space will takes place and in gas more amount of space will take place on between that molecules.
4. solids not flow because their molecules are tightly packed .
5. when sugar is dissolved in water the volume remains same it is due to because the sugar properly dissolved in water .
6. we can make a saturated solution of salt in water by dissolving the salt properly in the water
7. please mark the answer as a brainliest

Answer 2

Explanation:

1.Air is classified as matter because it has mass and takes up space, which is the definition of matter.

2.A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. ... A molecule may be homonuclear, that is, it consists of atoms of one chemical element, as with oxygen (O2); or it may be heteronuclear, a chemical compound composed of more than one element, as with water (H2O).

3. A stone is a solid, thus the molecules are very close together. A water is a liquid, thus the molecules are loose making it flow. An air is a gas, this the molecules are very far from each other.

4. Becoz of forces of attraction. They are held in fixed positions but they do vibrate. Because the particles don't move, solids have a definite shape and volume, and can't flow. Because the particles are already packed closely together, solids can't easily be compressed.

5. BECOZ ....THE sugar is dissolved in water, the volume does not remain the same. As a soluble material is added to a solvent, it's molecules become surrounded by the solvent molecules and the volume increases slightly

.

6. * By the addition of the sugar to water until it no longer dissolves creates a saturated solution.

*Continuing to dissolve salt in water until it will no longer dissolve creates a saturated solution.

* The Earth's soil is saturated with nitrogen.

* Mixing powdered soap into water until it will not dissolve creates a saturated solution.