Question

Uzupełnij współczynniki stechiometryczne w poniższych równaniach:

...Na + ...S= ...Na2S
...Fe + ...O2= ...Fe2O3
...K + ...Cl2= ...KCl
...N2 + H2= ...NH3
...H2 + ...O2= ...H2O3
...CuO + ...H2= Cu + H2o
...CH4 + ...O2= ... CO2 + ...H2O
...MgO(OH)2+ ...HCl= ...MgCl2+ ...H2O
...Mg+ ...O2+ ...MgO
...Ca + ...Cl2= ...CaCl2
...HgO= ...O2+ ...Hg
...C + ...H2= ...CH4
...Na+...HCl= ...NaCl+...H2
...NH3+ ...O2= ...N2+ ...H2O
...ZnS+ ...O2= ZnO + SO2

Answer 1

2Na + S --> Na₂S
4Fe + 3O₂ --> 2Fe₂O₃
2K + Cl₂ --> 2KCl
N₂ + 3H₂ --> 2NH₃
2H₂ + O₂ --> 2H₂O
CuO + H₂ --> Cu + H₂O
CH₄ + 2O₂ --> CO₂ + 2H₂O
Mg(OH)₂ + 2HCl --> MgCl₂ + 2H₂O
2Mg + O₂ --> 2MgO
Ca + Cl₂ --> CaCl₂
2HgO --> O₂ + 2Hg
C + 2H₂ --> CH₄
2Na + 2HCl --> 2NaCl + H₂
4NH₃ + 3O₂ --> 2N₂ + 6H₂O
2ZnS + O₂ --> 2ZnO + 2S

Pozdrawiam ;)

Answer 2

2Na + S --> Na₂S
4Fe + 3O₂ --> 2Fe₂O₃
2K + Cl₂ --> 2KCl
N₂ + 3H₂ --> 2NH₃
2H₂ + O₂ --> 2H₂O
CuO + H₂ --> Cu + H₂O
CH₄ + 2O₂ --> CO₂ + 2H₂O
Mg(OH)₂ + 2HCl --> MgCl₂ + 2H₂O
2Mg + O₂ --> 2MgO
Ca + Cl₂ --> CaCl₂
2HgO --> O₂ + 2Hg
C + 2H₂ --> CH₄
2Na + 2HCl --> 2NaCl + H₂
4NH₃ + 3O₂ --> 2N₂ + 6H₂O
2ZnS + O₂ --> 2ZnO + 2S