What do we call the substances that react together (break/form chemical bonds) to form new substances?

A)reactants

B)products

C)none of the answers are correct

D)catalysts

A) reactants

Explanation:

Reactants are the substances that have chemical reactions when they are combined, whereas the product is what comes from the reactants’ chemical reactions.

this could be newton#'s law of cooling. the cooling curve is exponential

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.