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April 19, 2015

Homework Help: CHEM

Posted by Marrion on Tuesday, October 20, 2009 at 11:05am.

Which reactants could be used safely to prepare potassium chloride?

1. aqueous potassium hydroxide and dilute hydrochloric acid
2. aqueous potassium sulphate and aqueous sodium chloride
3. potassium and aqueous sodium chloride

The answer is 1, but i don't really know how to get this answer. I know that 1 is a neutralisation reaction, but what about reaction 2 and 3? Shouldn't number 2 and 3 be reasonable as well? Please help me!

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