Due to the presence of soluble salts of magnesium and calcium in the form of chlorides in water, hardness remains permanent in water.
Due to the presence of soluble salts of calcium and magnesium in the form of hydrogen carbonates in water, hardness remains temporary in water.Answered by Pragya Singh | 1 year ago
What do you understand by the terms :
(i) Hydrogen economy
(iv) Water-gas shift reaction
(v) Fuel cell?
How does H2 O2 behave as a bleaching agent?
Do you expect different products in solution when aluminium (III) chloride and potassium chloride treated separately with
(i) alkaline water
(ii) acidified water, and
(iii) normal water. Write equations wherever necessary.
What do you expect the nature of hydrides is, if formed by elements of atomic numbers 15, 19, 23 and 44 with dihydrogen? Compare their behaviour with water.
How can saline hydrides remove traces of water from organic compounds?