Murky green algal blooms are more than a major eyesore; they reveal that a body of water could be unsafe for swimming or drinking. Currently, however, there isn't an effective warning system for ...

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 ...

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 ...