PLEASE HELP ME FOR 45 POINTSS!!!! ANSWER WILL GET BRAINLIEST!!!!



Mr. Carmen asked his class to observe the following events.

steel wool rusting
wooden splints burning down to ashes
sandstone crumbling when tapped with a hammer
an antacid tablet releasing carbon dioxide bubbles in water
Which of the events produced a physical change?


A. steel wool rusting


B. wooden splints burning down to ashes


C. sandstone crumbling when tapped with a hammer


D. an antacid tablet releasing carbon dioxide bubbles in water