I need help with chem!!?

Question

ok i just need to know if the following are a chemical change or physical changes.

1.tearing paper
2.burning paper
3.dissolving nacl
4.mixing nacl and AgNo3
5.tearing mg ribbon
6.adding Hcl to Mg
7. grinding CuSo4 and 5 H2O
8.heating CuSo4 and 5H2o
9. mixing Fe and
10. heating a mixture of Fe and S

umm if your not sure of one just put idk or something or you could just answer the ones you knoww that would be a lot of help too.

just don't put stupid stuff or wrong answers cause you might confuse me

Answer 1

a physical change just changes the state of the substance, a chemical change changes the substance into something different
1 physical--its still paper
2 chemical--now its ashes
3 physical--still salt, just dissolved
4 NaCl + AgNO3 will form a solid, AgCl, which is different from each--chemical
5. physical--stil mg ribbon
6 chemical-HCl digests the metal producing H2 gas, and liquids
7. physical-still CuSO4; just powered
8. chemical-allows CuOH solids to form
9. Fe and what--if it is just mixing iron then it is physical
10. Chemical-produces iron sulfides

Answer 2

1. P
2. C
3. P
4. C
5. P
6. C
7. P
8. C
9. and what? Sand? P
10. C

Answer 3

1 p
2c
3p
4p
5p
6c
7p
8p
9p
10c

Answer 4

1-PHYSICAL
2-chemical
3-PHYSICAL
4-PHYSICAL
5-PHYSICAL
6-chemical
7-PHYSICAL
8-chemical
9-PHYSICAL
10-chemical