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-calcium carbonate physical change is being grinded into fine powder
~original form was two sticks
-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
-once added into hydrochloric acid the chalk begins to bubble
-the state changes and becomes a liquid of some sort.
-Chemical change because gas formation was observed, which indicated that the calcium carbonate was transformed into a different substance
WATER:
-water in a beaker is placed over hot plate and boiled
-water levels lower and form a gas as seen as the bubbles
-blue waves of heat??
-Physical change because even though gas formation was observed, the water was undergoing a state change, which means its original properties are preserved
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