IntroductionAn 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 ...

IntroductionAn 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 ...

"Lactic acid bacteria can improve plant-based dairy alternatives." ScienceDaily. ScienceDaily, 9 April 2025. <www.sciencedaily.com / releases / 2025 / 04 / 250408121847.htm>.

Lactic acid is a substance that builds up in muscles during exercise and makes them ache. Find out more with BBC Bitesize. For students between the ages of 11 and 14.