SC-1246
Physical and chemical changes
Lower Sec Science · Secondary 2 · Medium · Physical and chemical changes
A student adds dilute hydrochloric acid to a beaker containing solid calcium carbonate. Bubbles are seen and the solid slowly disappears.
Which statement best describes this change?
Which statement best describes this change?
- It is a physical change because only the state of calcium carbonate changes.
- It is a chemical change because new substances are formed.
- It is a physical change because the reaction can be easily reversed.
- It is a chemical change because no gas is produced.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.