A pH or acid-base indicator is a compound that ... change can also be used as evidence that a chemical reaction has occurred. Students will explore what happens during neutralization by using a base ...

The acid and conjugate base each have different colors and as the equilibrium shifts from one direction to the other, the color of the indicator changes. As an example, the equilibrium of a weak acid ...

The acid and conjugate base each have different colors and as the equilibrium shifts from one direction to the other, the color of the indicator changes. As an example, the equilibrium of a weak acid ...

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 ...

Reactions of metals with acids Acids react with some metals to produce salts and hydrogen. The salt name can be found from the name of the acid and metal. Acids and bases Acids, bases and alkalis ...

(aq)\) This is a reversible reaction. A small proportion of water ... Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces ...