Answer:
Acids and bases are two important chemical substances that have many different properties. Some of the key properties of acids and bases include:
i. Taste: Acids have a sour tase, while bases have a bitter taste.
ii. Texture: Acids feel rough to the touch, while bases feel slippery.
iii. pH: Acids have a pH less than 7, while bases have a pH greater than 7.
iv. Litmus paper: Acids turn blue litmus paper to red, while bases turn a red litmus paper to blue.
v. Reaction with metals: Acids react with metals to produce hydrogen gas. Generally, bases do not react with metals.
vi. Reaction with carbonates: Acids react with carbonates to produce carbon dioxide gas. Bases do not react with carbonates.
vi. Conductivity: Acids and bases are both electrolytes; they can conduct electricity. However, acids are stronger electrolytes than bases.