A change in pH of 1.0 unit indicates that: a. the molarity of H changes by one order of magnitude.
b. the acid or base content decreases or in- creases by 0.1 M.
c. the acid or base content decreases or in- creases by 1.0 M.
d. the salt content decreases or increases by 1.0 M.
e. the volume of H in a solution changes by an order of magnitude.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering