Awell designed experiment supports a. supports your hypothesis b. tests multiple variables at once c. dies not need multiple trials d. is controlled to only test one variable

thinking it would be physical characteristics

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.