Which of these statements is not true about chemical reaction rates? the reaction rates can change. the reaction rates can increase. the reaction rates can decrease. the reaction rates are always constant

Which is the most likely way an automotive engineer would use chemistry

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.