Q 1. Name or state the following:-
a) An efflorescent tri- hydrate salt.
b) A deliquescent hydroxide.
c) A substance to remove permanent and temporary hardness in water.
d) An agent which removes chemically combined water or elements of water from compounds.
e) The substance which dissolves or disappears in a solvent to form a solution
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Answer: Efflorescence, spontaneous loss of water by a hydrated salt, which occurs when the aqueous vapor pressure of the hydrate is greater than the partial pressure of the water vapour in the air.
Explanation:
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a) Sodium carbonate deca hydrate
b) gold III chloride
c) Calcium hydroxide
d) Sodium chloride is a chemical compound formed from sodium (Na) and chlorine (Cl) in a 1:1 ratio.
e) solute
hope it is helpful
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