The release of heat energy is a common indicator of a chemical reaction true or false

The correct answer is True.

Explanation

Chemical reactions are processes in which two or more chemical substances are involved, known as reactants or reagents, as a product of these reactions the matter of the initial substances is transformed into a new substance. In chemical reactions, the elements undergo a profound transformation that changes their structure and molecular composition. In general, chemical reactions have physical indicators, that is, a manifestation that allows knowing that a chemical reaction is happening such as a color change, temperature change, change of state (solid, liquid or gas), density change, between others. So, the correct answer is True, because a release of heat is a change in temperature which means that a chemical reaction is occurring.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

it is b that is the answer.