» How could a scientist determine on a molecular level whether a chemical reaction has occurred? A. They could see whether atoms have been rearranged. B. They could see whether molecules have been rearranged. C They could see whether the motion of molecules has accelerated. D. They could see whether the motion of atoms has accelerated.​

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Asolid that forms and separates from a liquid mixture is called

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?