In your chemistry classes, you have probably learned that,
Chapter 27, Problem 20CQ(choose chapter or problem)
Problem 20CQ
In your chemistry classes, you have probably learned that, in a chemical reaction, the mass of the products is equal to the mass of the reactants. That is, the mass of the substances produced in a chemical reaction is equal to the mass of the substances consumed in the reaction. Is this absolutely true, or is there actually a small difference? Explain.
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