11. Circle the sentences that are true. a. Strong bases have a higher concentration of hydronium ions
than pure water
b. Strong bases dissociate almost completely in water.
c. Strong bases have a pH below 7.
d. Examples of strong bases include sodium hydroxide and
calcium hydroxide.

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges