Question

Урівняти 1) NF3 + H2O → HNO2 + HF 3) P2S3 + H2O → H2S + H3PO3 5) Ca + H2O → Ca(OH)2 + H2 7) P + H2O → H3PO4 + H2 9) Cu2O + O2 → CuO 11) P2S5 + H2O → H3PO4 + H2S 13) Al + Fe 3 O 4 → Al 2O3 + Fe 15) NO2 +Ba(OH)2 → Ba(NO3)2 + Ba(NO2)2 + H2O 17) Na 2 CO3 + HCl → NaCl + CO2 + H2O 19) NaAlO 2 + HCl → AlCl3 + NaCl + H2O 21) CaC2 + H2O → Ca(OH)2 + C2H2 23) NaOH + POCl3 → Na3PO4 + NaCl + H2O 25) C2H2 + O2 → CO2 + H2O 27) FeS + O2 → Fe2O3 + SO2 29) CH4 + O2 → CO2 + H2O

Answer 1

Відповідь:

NF3+2H2O=HNO2+3HF

P2S3+6H2O=3H2S+2H3PO3

Ca+2H2O=Ca(OH)2+H2

2P+8H2O=2H3PO4+5H2

2Cu2O+O2=4CuO

P2S5+8H2O=2H3PO4+5H2S

8Al+3Fe3O4=4Al2O3+9Fe

4NO2+2Ba(OH)2=Ba(NO3)2+Ba(NO2)2+2H2O

Na2CO3+2HCl=2NaCl+CO2+H2O

NaAlO2+4HCl=AlCl3+NaCl+2H2O

CaC2+2H2O=Ca(OH)2+C2H2

6NaOH+POCl3=Na3PO4+3NaCl+3H2O

2C2H2+5O2=4CO2+2H2O

4FeS+7O2=2Fe2O3+4SO2

CH4+2O2=CO2+2H2O

ПОЖАЛУЙСТА КОРОНКУ ПОСТАВЬ

Пояснення:

Answer 2

To balance the given chemical equations, let's go through each one:

1. NF3 + H2O → HNO2 + HF

To balance this equation, we need 3 HF molecules on the right side:

NF3 + H2O → HNO2 + 3HF

3. P2S3 + H2O → H2S + H3PO3

To balance this equation, we need 3 H2S molecules on the right side:

P2S3 + 3H2O → 3H2S + H3PO3

5. Ca + H2O → Ca(OH)2 + H2

This equation is already balanced.

7. P + H2O → H3PO4 + H2

To balance this equation, we need 4 H2 molecules on the right side:

P + 5H2O → H3PO4 + 4H2

9. Cu2O + O2 → CuO

This equation is already balanced.

11. P2S5 + H2O → H3PO4 + H2S

This equation is already balanced.

13. Al + Fe3O4 → Al2O3 + Fe

This equation is already balanced.

15. NO2 + Ba(OH)2 → Ba(NO3)2 + Ba(NO2)2 + H2O

To balance this equation, we need 2 Ba(NO3)2 and 2 H2O molecules on the right side:

NO2 + Ba(OH)2 → Ba(NO3)2 + Ba(NO2)2 + 2H2O

17. Na2CO3 + 2HCl → 2NaCl + CO2 + H2O

This equation is already balanced.

19. NaAlO2 + HCl → AlCl3 + NaCl + H2O

This equation is already balanced.

21. CaC2 + 2H2O → Ca(OH)2 + C2H2

This equation is already balanced.

23. NaOH + POCl3 → Na3PO4 + 3NaCl + H2O

To balance this equation, we need 3 NaCl molecules on the right side:

3NaOH + POCl3 → Na3PO4 + 3NaCl + H2O

25. C2H2 + 2.5O2 → 2CO2 + H2O

To balance this equation, we need 2.5 O2 molecules on the left side, which can be written as 5/2 O2:

2C2H2 + 5/2 O2 → 4CO2 + 2H2O

27. FeS + O2 → Fe2O3 + SO2

To balance this equation, we need 3 O2 molecules on the left side:

4FeS + 3O2 → 2Fe2O3 + 4SO2

29. CH4 + 2O2 → CO2 + 2H2O

This equation is already balanced.

Here are the balanced chemical equations:

1. NF3 + H2O → HNO2 + 3HF
2. P2S3 + 3H2O → 3H2S + H3PO3
3. Ca + H2O → Ca(OH)2 + H2
4. P + 5H2O → H3PO4 + 4H2
5. Cu2O + O2 → CuO
6. P2S5 + H2O → H3PO4 + H2S
7. Al + Fe