The study of the quantitative relationships among the amounts of reactants used and the amounts of products formed by a chemical reaction is called .

Strong conductivity of plasma allows it to act and react as and

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a