The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.
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....... is the property of attracting electrons by the halogen atoms in a molecule
In a compound the elements are always present in definite proportions by ______
30 litres of salt solution contains 5% salt. How many litres of water must be added so as to get a resultant solution containing 3%salt?
Which of the following is also used as a Bio fertilizer?
A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.
Which of the follow is the last element in Newlands Law of Octaves classification?
Metals reacts with acids to give:
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