Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64

a) 5*10^-5
b)5.00*10^-5
c)5.000*10^-5

Amount of liquid measured in l or lm

What is the relation between concentration of reactants and the rate of chemical reaction?

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?