Critical Thinking 5. Applying Concepts Many
cold packs used for sports
injuries are activated by
bending the package, causing
the substances inside to
chemically react. How is heat
involved in this process?

Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?