This graph shows how the concentration of a reactant changed during a chemical reaction. Which sentence best describes how the concentration of
the reactant changed?

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply