Question

Даю 30 баллов! Уравняйте реакцию и определите, какова сумма всех коэффициентов в уравнении реакции? NH3 + O2 (стрелка) NO + H2O Дробные и кратные коэффициенты недопустимы. Коэффициент 1 не ставится, но при вычислении суммы коэффициентов учитывается.

Answer 1

4NH3 + 5O2 → 4NO + 6H2O

сумма 4+5+4+6= 19

поставьте ответ как лучший пожалуйста

Answer 2

Balancing the Chemical Equation and Sum of Coefficients

To balance the chemical equation and determine the sum of all coefficients, we will follow a step-by-step process. The given equation is:

NH3 + O2 → NO + H2O

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's proceed with the balancing process:

Step 1: Start by counting the number of atoms for each element on both sides of the equation.

On the left side (reactants): - Nitrogen (N): 1 atom - Hydrogen (H): 3 atoms - Oxygen (O): 2 atoms

On the right side (products): - Nitrogen (N): 1 atom - Hydrogen (H): 2 atoms - Oxygen (O): 3 atoms

Step 2: Balance the atoms of each element one by one.

Balancing nitrogen (N): - There is already 1 nitrogen atom on both sides, so it is balanced.

Balancing hydrogen (H): - There are 3 hydrogen atoms on the left side and 2 hydrogen atoms on the right side. - To balance hydrogen, we need to put a coefficient of 2 in front of H2O on the right side.

The equation now becomes:

NH3 + O2 → NO + 2H2O

Balancing oxygen (O): - There are 2 oxygen atoms on the left side and 3 oxygen atoms on the right side. - To balance oxygen, we need to put a coefficient of 3/2 (or 1.5) in front of O2 on the left side.

The equation now becomes:

3/2NH3 + 3/2O2 → NO + 2H2O

Step 3: Convert the fractional coefficients to whole numbers.

To avoid fractional coefficients, we can multiply the entire equation by 2 to eliminate the fractions:

2 * (3/2NH3 + 3/2O2 → NO + 2H2O)

This gives us the balanced equation:

3NH3 + 3O2 → 2NO + 4H2O

Now, let's calculate the sum of all coefficients in the balanced equation:

3 + 3 + 2 + 4 = 12

Therefore, the sum of all coefficients in the balanced equation is 12.

Please note that the coefficients in the balanced equation represent the relative number of molecules or moles of each substance involved in the reaction.