AP BIOLOGY

Detailed explanation-1: -Acids taste sour, conduct electricity when dissolved in water, and react with metals to produce hydrogen gas. Certain indicator compounds, such as litmus, can be used to detect acids. Acids turn blue litmus paper red. The strength of acids is measured on the pH scale.

Detailed explanation-2: -Acids are compounds with specific characteristic properties. An acid reacts with metals and carbonates, tastes sour, and turns blue litmus paper to red.