Question

KMnO4 + NO + H2SO4 → MnSO4 + NO2 + K2SO4 + H2O общая сумма коэффицентов18,22,11,44,36,9?

Answer 1

Ответ:21

Объяснение:2KMnO4 + 5NO + 3H2SO4 → 2MnSO4 + 5NO2 + K2SO4 + 3H2O

Answer 2

To balance the chemical equation:

KMnO4 + NO + H2SO4 → MnSO4 + NO2 + K2SO4 + H2O

You need to ensure that the number of atoms of each element is the same on both sides of the equation. To do this, we can start by balancing the atoms of each element one by one.

Step 1: Balance the atoms of each element except hydrogen and oxygen.

Balance potassium (K): There are 1 K on the left and 2 K on the right. We need to add a coefficient of 2 in front of KNO.

2 KMnO4 + NO + H2SO4 → MnSO4 + NO2 + K2SO4 + H2O

Step 2: Balance oxygen (O) atoms using H2O.

There are 4 O atoms on the left and 4 O atoms on the right. No need to add H2O.

2 KMnO4 + NO + H2SO4 → MnSO4 + NO2 + K2SO4 + H2O

Step 3: Balance hydrogen (H) atoms using H2O.

There are 2 H atoms on the left and 4 H atoms on the right. We need to add a coefficient of 2 in front of H2O.

2 KMnO4 + NO + H2SO4 → MnSO4 + NO2 + K2SO4 + 2 H2O

Now, the equation is balanced for all elements.

Step 4: Check the sum of the coefficients to find the total number of molecules.

Coefficient of KMnO4 = 2 Coefficient of NO = 1 Coefficient of H2SO4 = 1 Coefficient of MnSO4 = 1 Coefficient of NO2 = 2 Coefficient of K2SO4 = 2 Coefficient of H2O = 2

Sum of coefficients = 2 + 1 + 1 + 1 + 2 + 2 + 2 = 11

The total sum of coefficients is 11, not 18, 22, 44, 36, or 9.