physical change because even though a state change was observed, the calcium carbonate retained its original properties
B
physical change because even though a particle size change was observed, the calcium carbonate retained its original properties and was not transformed into a new substance
C
chemical change because a state change was observed, which indicated that the calcium carbonate was transformed into a different substance
D
chemical change because a particle size change was observed, which indicated that the calcium carbonate was transformed into a different substance