Which set of substances listed includes both acids and bases? a. pH = 1, pH = 3, pH = 6

b. pH = 3, pH = 2, pH = 9

c. pH = 7, pH = 8, pH = 9

d. pH = 8, pH = 10, pH = 14

Which of the following units is not an official si unit? mole liter kilogram ampere

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.