Answers:
1. Physical; chemical makeup is not altered
2. Chemical; example of combustion which is a chemical reaction
3. Chemical; burning is a chemical reaction
4. Physical; chemical makeup is not altered
5. Chemical; Iron reacts with damp air to create rust, this is creating something that was previously not there
6. Physical; it is still paper
7. Chemical; tarnish is created from a chemical
8. Physical; carbon dioxide remains carbon dioxide
9. Chemical; a flame is created
10. Chemical; burning is a chemical reaction, fumes and gas is created
11. Physical; properties are not chemically altered
12. Physical; wood is still wood when chopped
13. Chemical; the heat of frying changes the properties and composition of an egg
14. Chemical; Vinegar reacts to baking soda and creates a gas
15. Physical; clouds being formed is a phase change and phase changes are physical
16. Chemical; Mold is created and is not originally there
17. Physical; wood is still wood when sanded
Hope this helped!