February 23, 2017

Homework Help: Chemistry

Posted by Khzyata on Saturday, April 18, 2009 at 11:37am.

The relative number of elements and compounds in a chemical equation are represented by either coefficients, subscripts, charges of phase symbols. I think it's coefficients, but is this right?

My other question is that if you start a reaction with four molecules containing a total of 40 atoms, and the reaction ends with eight molecules how many atoms would there be? I said 20, but I wanted to check this with jiskha since this is my first type of these problems.

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