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Author Question: general chemistry (Read 1604 times)

itsmyluck

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on: Feb 5, 2014
Heating removes something something from the metalic substance to make calx.
Is this a reasonable hypothesis?
How could you test the hypothesis?
Can you think of an alternative hypothesis that could also explain the observations?


Hawke

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Reply #1 on: Feb 8, 2014
It's not a reasonable hypothesis because it doesn't contain an explanation as to why. In addition, the variables are not quantitative. We don't know how much heat, nor are we told the substance that is removed.

To test this hypothesis, you've have to heat the substance at several different temperatures to see how much heat is required. The amount of substance would have to stay constant.



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