Students will also be able to explain that different substances react in characteristic ways that can be used to identify a substance. A pH or acid-base indicator is a compound that changes color ...

They have also seen reactions in which an acid or a base reacted to change the color of a pH indicator solution. Do you think that the reactions you will carry out may produce a gas? Yes. At least one ...

Neutralisation close neutralisationThe reaction between an acid and a base to form a salt plus water. involves an acid reacting with a base or an alkali, forming a salt and water.

A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

Neutralisation is the reaction between an acid and a base. Electrolysis - AQA Electrolysis involves using electricity to break down electrolytes to form elements. The products of electrolysis can ...