1. The action of hydrochloric acid on limestone is a chemical transformation. TRUE FALSE
2. In the presence of an acid, the mass of a piece of limestone does not vary. TRUE FALSE
3. The action of an acid on limestone produces carbon dioxide. TRUE FALSE
4. Limestone contains carbon dioxide. TRUE FALSE
5. The mass of a closed container containing limestone attacked by an acid does not vary. TRUE FALSE
6. The mass of an open container containing limestone attacked by an acid does not vary. TRUE FALSE
7. Limewater turns cloudy in the presence of limestone. TRUE FALSE
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