Acids and bases make pH indicators turn different colors ... property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred. Students will explore ...

Dawson, H. M., and Spivey, E., J. Chem. Soc., 2180 (1930). Bell, R. P., and Jones, P., J. Chem. Soc., 88 (1953). Swain, C. G., Di Milo, A. J., and Cordner, J. P., J ...

Neutralisation is the reaction of an acid with a base that results in the pH moving towards 7. It is a useful process that occurs in everyday life such as in the treatment of acid indigestion and ...

This pigment is a natural acid-base indicator. It is blue in neutral substances, like plain water. When an acid like lemon juice gets in the water, a reaction makes the indicator molecule change shape ...

This reaction is shown below. In this reaction the ferric ion (Fe 3+) is acting as a Lewis Acid and the oxalate anion (C 2 O 4 2-) as a Lewis Base. A Lewis Acid is an electron pair acceptor and a ...

RNA is usually single-stranded but can form complex secondary structures through base pairing within the same ... and develop new crop varieties. Nucleic acid-based techniques, such as polymerase ...