Question

What do all acids have in common?

Answer 1

Acids:

• Acids are substances that donate a proton $\left({\mathrm{H}}^{+}\right)$.
• Acid changes blue litmus to red.
• Examples of Acids are Hydrochloric acid $\left(\mathrm{HCl}\right)$ as well as Acetic acid $\left({\mathrm{CH}}_3\mathrm{COOH}\right)$.

Properties that all acids have in common:

• Acid conducts electricity when dissolved in water.
• When acids react with metals, Hydrogen gas$\left({\mathrm{H}}_2\right)$ is liberated.
• A certain indicator such as litmus is used to detect acids.
• All acids turn blue litmus red.
• All acids react with a base to form salt as well as water.