What is the pOH of a solution with hydrogen ion concentration equal to 5.5 x10^-9 M

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?