b) Alum
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Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?
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Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from
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Which of the following is used for purification of water?
a) Sodium bicarbonate
b) Alum
b) Alum
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