Question

Написать оксиды и расставить коэффициенты Na+O2= S (IV) + O2 = B+O2= Cu (II) +O2= Mn (IV) + O2= Zn S +O2= C2 H6 +O2= Si Hu +O2=

Answer 1

4Na+O2=2Na2O
S+O2=SO2
4B+3O2=2B2O3
2Cu+O2=2CuO
Mn+O2=MnO2
2ZnS+3O2=2ZnO+2SO2
2C2H6+7O2=4CO2+6H2O
SiH4+2O2=SiO2+2H2O

Answer 2

Writing and Balancing Chemical Equations

To write and balance chemical equations, we need to determine the formulas of the compounds involved and then balance the number of atoms on both sides of the equation. Let's go through each equation and balance them one by one.

1. Na + O2 = Na2O - This equation represents the reaction between sodium (Na) and oxygen (O2) to form sodium oxide (Na2O). - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 4Na + O2 = 2Na2O.

2. S (IV) + O2 = SO2 - This equation represents the reaction between sulfur (S) in its +4 oxidation state and oxygen (O2) to form sulfur dioxide (SO2). - The balanced equation is already provided: S (IV) + O2 = SO2.

3. B + O2 = B2O3 - This equation represents the reaction between boron (B) and oxygen (O2) to form boron trioxide (B2O3). - The balanced equation is: 4B + 3O2 = 2B2O3.

4. Cu (II) + O2 = CuO - This equation represents the reaction between copper (Cu) in its +2 oxidation state and oxygen (O2) to form copper(II) oxide (CuO). - The balanced equation is: 2Cu (II) + O2 = 2CuO.

5. Mn (IV) + O2 = MnO2 - This equation represents the reaction between manganese (Mn) in its +4 oxidation state and oxygen (O2) to form manganese dioxide (MnO2). - The balanced equation is: 2Mn (IV) + O2 = 2MnO2.

6. Zn + S + O2 = ZnSO4 - This equation represents the reaction between zinc (Zn), sulfur (S), and oxygen (O2) to form zinc sulfate (ZnSO4). - The balanced equation is: 2Zn + S + 4O2 = 2ZnSO4.

7. C2H6 + O2 = CO2 + H2O - This equation represents the combustion of ethane (C2H6) in the presence of oxygen (O2) to form carbon dioxide (CO2) and water (H2O). - The balanced equation is: 2C2H6 + 7O2 = 4CO2 + 6H2O.

8. Si + H2O + O2 = SiO2 + H2O - This equation represents the reaction between silicon (Si), water (H2O), and oxygen (O2) to form silicon dioxide (SiO2) and water (H2O). - The balanced equation is: Si + 2H2O + O2 = SiO2 + 2H2O.

I hope this helps! Let me know if you have any further questions.