The activation energy for a reaction can be determined by measuring the reaction rate at different
a. temperatures
b. catalyst concentrations
c reactant concentrations
d times on the reaction curve
the answer is a. explain why. i thought c would be the answer because reaction rate is found by looking at reactant concentrations.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

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.

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )