Question

please please please help me in this

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Answer 1

Answer:

1) Physical

2) Chemical

3) Expand

4) Contract

5) Chemical

I dont know 6)

Hope this helps pls mark me

Answer 2

Answer:

1. physical change

2. chemical change

3. expand OR when we heat metal electrical resistance increases

4. contract OR when we cool metal electrical resistance decreases

5. chemical change

6. expands