Calculate the energy needed to raise the temperature of 25.0 grams of water from 22.0°c to 31.0°c. use calories

What is the independent variable in this investigation? mass volume sample number substance density

Is laundry detergent an acid or a base?

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.