SC-1239
Physical and chemical changes
Lower Sec Science · Secondary 2 · Medium · Physical and chemical changes
A student adds dilute sulfuric acid to a beaker containing solid calcium carbonate chips. Bubbles are seen and the chips slowly disappear.
Which type of change has taken place and why?
Which type of change has taken place and why?
- Chemical change, because new substances are formed
- Physical change, because only the size of the chips changes
- Physical change, because the process can be easily reversed
- Chemical change, because only the state of calcium carbonate changes
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