If you want to know how energy will move between two objects, what do you need to know about the objects? a. their densities b. their heats c. their temperatures d. their states

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8

Acid rain is caused by human activity. select the best answer from the choices provided t f