Question

Закінчити рівняння реакцій.(Допоможіть!) 1. CuS+O2-> 2. NH3+O2-> 3.C2H2+O2-> 4.Al+O2->

Answer 1

2CuS + 3O2 = 2CuO + 2SO2
4NH3 + 5O2 = 4NO + 6H2O
2C2H2 + 5O2 = 4CO2 + 2H2O
4Al + 3O2 = 2Al2O3

Answer 2

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the same number of each type of atom is present on both sides of the equation. Let's balance the given chemical equations step by step.

1. CuS + O2 -> - The unbalanced equation is: CuS + O2 -> - To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 2CuS + 3O2 -> 2CuO + 2SO2 - This is based on the chemical reaction: 2CuS + 3O2 -> 2CuO + 2SO2 [[1]]

2. NH3 + O2 -> - The unbalanced equation is: NH3 + O2 -> - To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 4NH3 + 3O2 -> 2N2 + 6H2O - This is based on the chemical reaction: 4NH3 + 3O2 -> 2N2 + 6H2O [[2]]

3. C2H2 + O2 -> - The unbalanced equation is: C2H2 + O2 -> - To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 2C2H2 + 5O2 -> 4CO2 + 2H2O - This is based on the chemical reaction: 2C2H2 + 5O2 -> 4CO2 + 2H2O [[3]]

4. Al + O2 -> - The unbalanced equation is: Al + O2 -> - To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 4Al + 3O2 -> 2Al2O3 - This is based on the chemical reaction: 4Al + 3O2 -> 2Al2O3 [[4]]

I hope this helps! If you have any more questions or need further assistance, feel free to ask.