24.In order to go to a lower energy orbit, an electron a. Must disappear
b. Must combine with other electrons
c. Lose energy of a specific amount
d. Must be transferred to another atom

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)