# Chemistry

The heads of matches are made with P4S3. this material is made by heating a mixture of red phosphorus and sulfur:
8P4 + 3S8----> 8P4S3
If a match company uses 5435 grams of phosphorous (p4) with an excess of sulfure, how many grams of P4S3 can be made?

Can someone step by step explain this to me with the answer? I need to know how to do it. I just don't get where to start.

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1. Here is a step by step procedure for doing these problems.
http://www.jiskha.com/science/chemistry/stoichiometry.html

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