An exothermic reaction causes the surroundings to a. warm up. b. become acidic. c. expand. d. decrease its temperature. e. release co2

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".