18. for every action, there is an equal and opposite reaction.

a. newton’s first law

b. newton’s fourth law

c. newton’s second law

d. newton’s third law

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

What are the dimensions of the cross section that passes through the points a, f, g, and d?

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created