This is some information about the potential energy.
Explanation:
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Answer:
The answer to your question is letter B. Phosphoric acid
Explanation:
A. water is not the right answer because it has a density of 1 g/ml and water is a liquid not a solid.
B. phosphoric acid is the right answer because phosphoric acid is a solid and all solids have a density higher than water (1 g/ml)
C. sodium hydroxide could be the correct answer but it is not because the crystals of sodium hydroxide are more colorless than white.
<span> I would guess that calcium (Ca), of all the group 2 elements, is most like magnesium (Mg), because it has the most similar size (atomic and ionic radii) to Mg. </span>