Some substances when dissolved in water cause hardness of water.
Which of the following substances cause hardness of water?
Sodium chloride, Calcium bicarbonate, Calcium carbonate, Calcium sulphate, Magnesium sulphate, Calcium chloride, Magnesium carbonate

Some substances when dissolved in water cause hardness of water. Sodium chloride, Calcium bicarbonate, Calcium carbonate, Calcium sulphate, Magnesium sulphate, Calcium chloride, Magnesium carbonate. The hardness due to which of the above salts cannot be removed by boiling?

Which of the following will cause softening of hard water?

Calculate the mass of CaO required to remove the hardness of 10^(6) litre of water containing 1.62 g of calcium bicarbonate per litre.

Write the name and formula of four minerals which cause permanent hardness of water.

Classify the following into elements and compounds. Ammonia, sugar, nitrogen, mercury, sodium chloride, water, copper sulphate, sodium, carbon.

What is formed when calcium carbide react with heavy water