Zainabr17
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Q: Lime, CaO, is used to reduce the acidity of soil, and ammonium sulphate is a nitrogenous fertilizer.
Why cannot they be used in a mixed form?

A:CaSO4 formed on mixing, causes hard water.
OR
B:When dampened, ammonia is given off.
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Pigster
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Which do you think? and why?
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Zainabr17
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There were actually four options but i was confused 'bout these two.
Like.. Calcium causes hard water. While when the mixture is dampened, ammonia is given off. Both seem correct.
I want to know : Why would it not cause hard water? And
Why does is give off ammonia only when it's 'dampened'?
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