Which statement(s) is/are true? Energy (A) can be stored and measured
(B) causes changes when it is transferred
(C) is used up and disappears
(D) both A and B
(E) both A and C​

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

An experimental procedure requires a 10 ml of acid to be dissolved

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.