Which statement describes a chemical reaction? a) reactants form products when atoms change state. b) products form reactants when atoms change state. c) reactants form products when atoms are rearranged. d) products form reactants when atoms are rearranged.

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false