How can you use knowledge of a minerals chemical makeup or use?

a: to determine how to break down minerals

b: to determine the color of the minerals

c: to classify minerals

d: to identify minerals

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

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.

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %