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 ...

A pH or acid-base indicator is a compound that changes color depending ... Observe the color of the indicator and record any color change(s) in the chart. Laundry detergent turns the indicator a ...

Medically reviewed by Cordelia Nwankwo, MD The pH of the vagina is essential for vaginal health. If you are seeking optimal ...

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 shows how acidic a substance is. Learn what pH means and how it is measured in this KS3 chemistry guide from BBC Bitesize. Neutralisation reactions Acids and alkalis react together in ...