The rate of a chemical reaction can be increased by using smaller solid particles which increases the surface area of a solid reactant. This is done by cutting the substance into small pieces ...

The questions in this quiz are suitable for GCSE combined science students studying the effect of concentration and pressure, surface area, temperature, and catalysts on the rate of reaction.

More dissolved particles leads to more collisions and a faster reaction. In your trials, when was the surface area the largest? Did the rate go faster? Temperature also affects the rate of a reaction.