A 5.0 liter balloon at room temperature (25.0°C) contains hydrogen gas. If the balloon is carried outside to where the temperature is –27.0°C, what volume (in liters) will the balloon change to? Hint: what unit is NOT allowed in gas law equations? Also, as usual, don't enter the unit of your answer here. Only enter the number of the correct answer. Always use significant figure and rounding rules.

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.