Question

CnH2n-6 + O2=CO2 + H2Oраставте коофиценты​

Answer 1

CnH(2n-6) - это общая формула ароматических углеводородов  (или аренов) и общая реакция горения для них следующая:

2CnH(2n-6) + (2n-3)O₂ = 2nCO₂ + (2n-6)H₂O

Ну, а теперь подставляя соответствующие значения вместо n

напишем данную реакцию, например, для толуола - С₇Н₈, у которого n=7

2С₇Н₈ + 11O₂ = 14CO₂ + 8H₂O

Answer 2

Ответ во вложении ......

Answer 3

To balance the chemical equation CnH2n-6 + O2 -> CO2 + H2O, we need to ensure that there is an equal number of atoms of each element on both sides of the equation. Let's balance it step by step:

1. Balance the carbon (C) atoms: On the left-hand side, we have CnH2n-6, which contains one carbon atom. On the right-hand side, we have CO2, which contains one carbon atom. Equation now: CnH2n-6 + O2 -> CO2 + H2O

2. Balance the hydrogen (H) atoms: On the left-hand side, we have CnH2n-6, which contains 2n-6 hydrogen atoms. On the right-hand side, we have H2O, which contains two hydrogen atoms. To balance the hydrogen, set the coefficient of H2O to (2n-6)/2 = n - 3. Equation now: CnH2n-6 + O2 -> CO2 + (n - 3)H2O

3. Balance the oxygen (O) atoms: On the left-hand side, we have O2, which contains two oxygen atoms. On the right-hand side, we have CO2, which contains one oxygen atom, and (n - 3)H2O, which contains (n - 3) * 2 = 2n - 6 oxygen atoms. To balance the oxygen, set the coefficient of O2 to (2n - 6) - 1 = 2n - 7. Equation now: CnH2n-6 + (2n - 7)O2 -> CO2 + (n - 3)H2O

Now the equation is balanced with the following coefficients:

CnH2n-6 + (2n - 7)O2 -> CO2 + (n - 3)H2O

Please note that since n is not specified, we cannot provide the exact numerical coefficients. The coefficients depend on the value of n, which needs to be provided in the original equation.