Calculate [OH − ] in each aqueous solution at 25°C, and classify the solution as acidic or basic. a) [H + ] = 1.2 x 10 -8M b) [H + ] = 8.5 x 10 -5M

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

What is avogadro’s number, and why is it useful

Why are people not able to skip a dive to the deepest part of the ocean