Antacid tablets contain bases such as magnesium hydroxide and magnesium carbonate to neutralise the extra acid. When an acid is added to an alkali the pH of the acid increases towards 7 and the pH ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

The pH scale shows how acidic a substance is ... The salt name can be found from the name of the acid and metal. Acids and bases Acids, bases and alkalis are found in the laboratory and at ...

In this is acidic baking soda acts as a base, with a pH of 9, while vinegar is the acid, with a pH of 2 or 3. The pH scale ranges from 0.0 to 6.9 for acids, 7.0 for neutral, and 7.1 to 14.0 for bases.