Which statements are true concerning the separation of calcium carbonate (CaCO3), sodium chloride (NaCl), and sand (SiO2)?
a) Calcium carbonate can be separated from the mixture using its solubility in water.
b) Sodium chloride can be separated from the mixture by dissolving it in water and then evaporating the water.
c) Sand can be separated from the mixture by filtration.
d) Calcium carbonate can be separated from the mixture by magnetic separation.
