A balloon is inflated in a 30oC room and has a volume of 5.2 L. At what temperature in K would the balloon have a volume of 9.4 L?

2. how is heavy water different from normal water

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.