Select the correct answer.
what does one mole of h2o correspond to?
a. 6.02 x 10^23 molecules of h20
b. 6.02 x 10^23 atoms of h and 6.02 x 10^23 atoms of o
c. 6.02 x 10^23 atoms of o
d. 6.02 x 10^23 atoms of h
e. 6.02 x 10^23 x 2 atoms of h

The reaction q+r2=r2q is found to be first order in r2 and

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains