Сделайте срочно прошу ваааас!!!
Осуществите цепочки превращений: 
1) H2S - SO2 - Na2SO3 - Na2SO4
2) H2SO4 - SO2 - S - Al2S3 - Al2(SO4)3
3) P - P2O5 - Na3PO4 - Ag3PO4 - H3PO4

Испоьзуйте необходимую форму глагола времён Present simple or Present Continious
1. I can't come to the cinema. I … any homework. (do) 2. What … the children … in the
garden? (do) 3. I usually … my homework in the evening. (do) 4. What … you … in the
evenings? (do) 5. You can't go outside. You … any shoes. (not wear) 6. The sky is cloudy.
Why … you … sunglasses? (wear) 7. She … uniform at work. (not wear) 8. She can't answer
the phone because she … her hair. (wash) 9. How often … she … her hair? (wash) 10. I … out
this evening because I've got a headache. (not go)! 11. You can't listen to music because the
stereo … (not work) 12. My parents aren't here at the moment. They … golf. (play) 13. They
always … at weekends. (play) 14. What's the matter? Why … you … (cry) 15. Children always
… when they are hungry. (cry) 16. They … this afternoon because they're both very tired. (not
work) 17. We don't want to leave the party. We … to a very interesting person. (talk)