Question

write 3 physical properties and chemical properties of acid and base

Answer 1

Answer:

Explanation:

Physical Properties of Acids.

•     Acids have a sour taste

•    Acid solutions have pH values less than 7. (More about pH values in the next few sub-topics)

•    Acid solutions turn blue litmus paper (an indicator) red.

Chemical Properties of Acids

There are three common reactions of acids:

   Acid+metal→salt+hydrogen gas

Acid+base→salt+water

Acid+carbonate→salt+water+carbon dioxide gaser (an indicator) red.

In the chemical properties of bases, we now focus on bases.

•    Bases change the colour of litmus from red to blue.

•    They are bitter in taste.

•    Bases lose their basicity when mixed with acids.

Answer 2

Explanation:

PHYSICAL PROPERTIES OF ACID:

i Acid have a sour taste

ii. Some acid are solid and some acid are liquid at room temp.

iii They change the colour of indicator.

CHEMICAL PROPERTIES OF ACID:

i When Acid react with metal producing metallic salt and hydrogen.

ii. When acid react with base form salt and water.

iii. When acid react with carbonate or bicarbonate form salt , water and carbon dioxide.

PHYSICAL PROPERTIES OF BASE:

i. They have sharp and bitter taste .

ii. They change the colour of indicators

iii. They are soapy substance

CHEMICAL PROPERTIES OF BASE:

i. Strong alkalis absorb carbon dioxide from air to form carbonate.

ii. They neutralise acid to form salt and water

iii. They pricipitate as insoluble metallic hydroxide when added to the solution of the salt of heavy metal.

Thank you