The ksp of copper sulfide (cus) is 8.0 × 10–37. what is the solubility concentration of [cu2+] in a saturated solution at 25°c?

1.3 × 10–18m

6.4 × 10–73m

6.3 × 10–19m

8.9 × 10–19m

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.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?

The ammonia molecule in the diagram has the observed bond orientation because