Chemistry

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Please help me with this chemistry question?
I am working on a lab report and I am stuck on this question:
Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation where precise amounts of products produced from a known amount of reactant would be necessary?
I know the first part of the question but the second part (propose a situation) of the question is what I am stuck on? Please help me?? Thanks so much!

  • Chemistry -

    IF you are doing an analysis, say forensic, you need to know precisely the products to determine precisely the sample.

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