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 ...

The pH scale is used to measure acidity and alkalinity. When an acid is neutralised, it forms a salt. Making salts Acids react with metals, bases and carbonates to produce salts. Neutralisation is ...

understand the core ideas about acids and bases; explain how the key ideas of acids and bases develop at more advanced levels; identify common misconceptions and know how these can be addressed or how ...

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 ...

Students will be able to explain that if two substances cause turn a pH indicator different colors, they must be different substances. Students will be able to explain that the color that a substance ...

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 ...