Correct answer only ! i cannot retake this and i need all correct answers !

the following symbol is used to represent in a circuit diagram.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

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

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good