Question

Answer in a sentence or two
1) What are the formula of ferrous chloride and ferric chloride?
2) Balance the equation H2O2 H2O +O2
3) Distinguish between speed and velocity.
4) What is energy? How can it be measured?
5) State two uses of solar energy.​

Answer 1

Answer:

1. ferrous chloride FeCl2,ferric chloride FeCl3

Answer 2

Answer:

1) formula of ferrous chloride - FeCl2 , ferric chloride- FeCl3

3) speed :- it is the rate of change of distance.

it is scalar quantity.

it is always positive.

velocity:- It is the rate of change of displacement.

it is vector quantity.

it may be positive, negative or zero.

4) energy is the capacity for doing work. Energy is measured in joule "J"

5) solar energy is used as heat for making hot water,to generate electricity, to heat engines etc.

hope it'll help you.