Reactants are
What you start with
What you end with

Reactants are what you start with

Explanation:

Reactants are what you start with, the product is what you end with! :)

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl