B. Fill in the blanks.
1. Most chemical changes are
______,whereas most physical changes are______.
2. Mixing of iron and sulphur is a______change, whereas heating of iron and sulphur is
a_______change.
3._______is formed when magnesium oxide is dissolved in water.
4. Rusting of iron is a ______change, whereas boiling of milk is a______change.
5. Carbon dioxide gas turns limewater______.A change takes place.
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Answer:
irreversible, physical properties
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