Which of the following statements about the ph scale is true? a. bases, which have higher concentrations of hydronium ions than acids, are found from 14 and down to 7. b. acids, which have lower concentrations of hydronium ions than bases, are found from 14 and down to 7. c. bases, which have higher concentrations of hydronium ions than acids, are found from 0 and up to 7. d. acids, which have higher concentrations of hydronium ions than bases, are found from 0 and up to 7.

answer: the figure is attached herewith.

step-by-step explanation:   we are given to sketch a unit circle and label the terminal points corresponding to

in the attached figure, we have drawn a unit circle, with centre at o(0,0) and radius 1 unit. we have labelled the points a, b, c, d and e corresponding to the angles below

∠aox = 60°,

∠box = 120°,

∠cox = 180°,

∠dox = 240°,

∠eox = 300°.

and the coordinates are a(0.5,1), b(-0.5,1), c(-1,0), d(-0.5,-1) and e(0.5,-1).

thus, the answer is complete.