What is the pressure in atm exerted by 1.076 moles of N2 gas in a steel cylinder that has a volume of 60.1 L being held at a temperature of 122.9∘C? R = 0.0821

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d. the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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.