Balance the equations

65^30ca → 65^29sc +

226^88ra → 4^2he +

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride