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stereohearts stereohearts
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4 years ago
In the chemical reaction of iron and sulfur:

2Fe(s) + 3S(s) → Fe2S3(s)

(a) How many moles of sulfur are needed to react with 1.42 moles of iron?

(b) Calculate the number of moles of iron needed to react with 2.75 moles of sulfur.

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When acetylene, C2H2, burns in oxygen, high temperatures are produced that are used for welding metals.
                       
2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)

How many grams of CO2 are produced when 54.6 g of C2H2 is burned
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