D. Making the reactant particles larger
thnxx for free point? ?????????
The one abt respiration the answer is the first one and circulatory system is the last one that says “delivery molecules …”
Atoms are the smallest particales of an element that can take part in a chemical reaction. During a chemical reaction no particles are created or destroyed. The atoms are simply rearranged from the reactants to the products, mass is NEVER lost or gained in chemical reactions...Mass is ALWAYS conserved. :) Hope this helped
B is the correct answer if I remember
