Question

1) Copy and complete:
Two particles can react together only if they …… and the …… has enough …… to be …….

2) What is meant by:
a a successful collision?
b an unsuccessful collision?

3) Reaction between magnesium and acid speeds up when:
a)the concentration of the acid is doubled. Why?
b) the temperature is raised. Why?
c) the acid is stirred. Why?
d) the metal is ground to a powder. Why?

Answer 1

bajs

Answer 2

1) Collide , collision , energy
2 a. The collision where old bonds broke with the use of energy and new bond are formed giving out energy
b. The collision which don't have energy to break a bond and form a bond are called an unsuccessful collision