Before you perform an experiment, which variable should you already know? A. A distant variable B. A manipulated variable C. A responding variable D. An experimental variable

multiply it by 5 in order for you to understand i cant give an exact answer.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.