34. What is the [OH-) in a solution where (H+) = 2.9 x 10^-9? a. 8.54 b. 2.9 x 10-23 c. 2.9 x 10-9 d. 3.4 x 106 e, none of the above​

Why does his teacher ask him to balance the equation by including the correct coefficient

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.