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Given the balanced equation representing a reaction:

Cao(s) + CO2(g) ---> CaCO3(s) + heat

What is the total mass of CaO(s) that reacts completely with 88 grams of CO2(g) to produce 200. grams of CaCO3(s)?

I don't understand what you have to do.

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3 answers
  1. This is a stoichiometry problem. Here is a solved example of such a problem. Just follow the steps.
    http://www.jiskha.com/science/chemistry/stoichiometry.html

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  2. 112 grams

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  3. its 112g
    because if you need a total of 200 and they already tell you that the co2 is 88, then subtract 88 from 200 to get 112

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