How many grams of carbon are needed to completely react with 75.2 g of SiO2? The

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How many grams of carbon are needed to completely react with 75.2 g of SiO2? The balanced chemical equation is...

(a)3.76 g
(b)15.1 g
(c)36.0 g
(d)45.1 g
 
Jan 9th, 2015

C+SiO2 = CO2 +Si

12  60 

x    75.2

x = 75.2*12/60 = 15.04

b) is the answer


Jan 10th, 2015

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Jan 9th, 2015
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