Please, need GCSE additional science ISA help

1.

As the concentration increases the particles become more crowded. This increases the number of collisions between reacting particles.

2.

As the temperature increases, the particles gain kinetic energy and move around quickly, so collisions between reactins particles are more successful, and also occur in great number.

3.

Increases in pressure forces particles closer together, increasing the rate of reaction.

1.

As the concentration increases, the number of collisions per second increases, and so the rate of reaction increases.

2.

As the temperature increases, the reactants have more kinetic energy, so collisions are more energetic and fequent, so more likely to be successful.

3.

Increasing the pressure in gases forces particles together, increasing collision frequency.