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The substance that are present before any chemical reaction are called Dioxides Oxygen Products Reactants HELP ASAP
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The substance that are present before any chemical reaction are called

Dioxides
Oxygen
Products
Reactants

HELP ASAP

User Shamia
by
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1 Answer

5 votes
Reactants. Reactants are the substances that are needed for a chemical reaction to occur. Without reactants there are no products.
User Patrick Conboy
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