Jacob eats a snack, and then plays basketball with his friends. when he shoots the basketball at the hoop, he is changing

a. chemical energy into mechanical energy
b. chemical energy into heat
c. mechanical energy into kinetic energy
d. electricity into heat

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Acontrol during an experiment. might change remains constant does not exist does change

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.