Which three statements represent the benefits of performing experiments using computer simulations?

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?