(a) Calculate the mass of sodium chloride and water required to prepare 300g of 30% solution of sodium chloride.
(b) Write any two characteristics of hydrogen gas.
(c) What is the use of chlorination in the water purification system?
(d) What do you mean by pure substances
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Calculate the mass of sodium chloride and water required to prepare 300g of 30% solution of sodium chloride.
(b) Write any two characteristics of hydrogen gas.
(c) What is the use of chlorination in the water purification system?
(d) What do you mean by pure substances
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