<span>Its D :) evaporation happens all the time, and can only occur at the surface (molecules break off and become gases) whereas boiling is when ANY molecule, whether from the surface, the middle or the bottom can just fly off and become a gas.</span>
Answer:
Na + CaSO4 = Na2SO4 + Ca
Explanation:
single displacement (substitution)
Low melting point
Low boiling point
Electric conductor
To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).
