The correct answer is B. it converts mechanical energy to electrical energy.
Well depending on the speed of both of those things is were the rock will be placed and it also determines how fast can an environment change
<span />
Ca(NO3)2(aq) + Na2CO3(aq) → 2NaNO3 + CaCO3⬇. NaNO3 is solution so CaCO3 is the precipitate formed.
We have Four (4). quantum number used in description of the energy state of an electron.