II Underline the correct choice in the given statement. Write your answer in your notebook.
1. The amount of substance in a mixture (can - connot) be changed 2. A (substance-mixture) has sharp or definite boling and melting points. 3. The substances in a mixture are (physically-chemically combined.
4. A substance is (always - not always) homogeneous.
5. A substance (can-cannot) be separated by ordinary physical means.
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Answer:
1. The amount of substance in a mixture can be changed.
2. A substance has sharp or definite boling and melting points.
3. The substances in a mixture are physically combined.
4. A substance is always homogeneous.
5. A substance cannot be separated by ordinary physical means.
Explanation:
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