Key learning points

1. Gently heating the acid speeds up the reaction, ensuring all acid reacts.
2. The salt should be dried using an appropriate method (using filter paper, or in the oven).
3. A pure sample should be prepared with equipment washed with distilled water to avoid contamination.
4. Reacting a metal hydroxide with an acid also produces a salt and water.
5. Reacting a metal carbonate with an acid can produce a desired salt with water, as well as carbon dioxide gas.

Keywords

• Method - Describes how an experiment is carried out; it is a step-by-step procedure.

• Apparatus - A piece of equipment that is designed for a particular use.

• Evaluate - To evaluate something is to make a judgement about it with respect to a particular purpose.

• Adapt - To make suitable for use or purpose, e.g. equipment or steps in an experimental procedure.

Common misconception