Question

e. vapo
D. Give reasons for the following with relevant examples.
1. Solids have high density while gases have minimum density.
2. Matter cannot be destroyed during a chemical reaction.
3. Masses of reactants in chemical action are not changed.​

Answer 1

Answer:

1. Because the molecules of solids are highly compact..

2.Because they get transferred to the reactants side.

3.

Answer 2

Answer:

Here---

Explanation:

1-- Because in solid molecules are highly packed, and in gases molecules are very loosely packed. eg- iron and oxygen

2-- Matter cannot be destroyed  during a chemical reaction (But can be converted to energy). As  the total mass of reactants is the same as the total mass of products in a chemical reaction,for normal conditions. eg- 4H + $O_{2}$ = 2$H_{2}O$

3-- Because Atoms are not created or destroyed in a chemical reaction, they are just rearranged from the reactants to form the products.