Question

(40 POINTS!) The subsistence that are present before any chemical reaction are called A dioxides B oxygen C products D reactants

Answer 1

D-reactants

Step-by-step explanation:

Chemical reaction is a phenomenon where the atoms remain intact. During the reactions, the initial molecules are "disassembled" and their atoms are reused to "assemble" new molecules.

The substances that participate in the chemical reaction are called products or reagents in the chemical equation. Reagents are the substances that are at the beginning of the reaction. They are the ones who will react, undergo the transformation. Products, on the other hand, are the substances resulting from the chemical reaction.

hope this helps!

Answer 2

The subsistence that are present before any chemical reaction are called reactants