Question

Distinguish between acids and bases.(4 points)
please tell fast very urgent
class7

Answer 1

Answer:

Acid is a kind of chemical compound that when dissolved in water gives a solution with H+ ion activity more than purified water. A base is an aqueous substance that donates electrons, accept protons or release hydroxide (OH-) ions. An acid is a proton donor. While a base is a proton acceptor.

Answer 2

Acid and base are chemical forms that play an important function in chemistry and are widely available in our everyday lives. Citric acid and lactic acid, which can be found in lemons and cheese, are two examples of acids.

Explanation:

Acids

• Acids are electrolytes that conduct electricity and turn blue litmus red.
• The majority of acids are solid.
• It has a sour flavour to it.
• After reacting with active metals such as zinc, magnesium, aluminium, or iron, they create hydrogen.
• Acids have a low pH, which is less than 7.
• When an acid combines with a basic or alkali, it produces salts and water.
• The majority of acids are solids.
• Some of the acids have corrosive properties.
• From their salts, weak and more volatile acids are replaced by strong and less volatile acids.

Bases

• The pH balance of a basic solution is greater than 7.
• Never try to taste a base because it has a bitter flavour.
• When an aqueous or molten base solution is dissociated into ions, electricity is conducted.
• Because strong bases are caustic, they react violently with acids and organic materials.
• With pH indicators, bases react correctly. In the presence of a base, it turns litmus paper blue, methyl orange yellow, and phenolphthalein pink, whilst Bromothymol blue remains blue.