Question

Расставь коэффициенты в уравнении реакции. Если перед формулой — коэффициент «1», то ячейку для него оставь пустой.Cu(NO3)2+ K2S= KNO3+ CuSДАЮ 100 БАЛЛОВ ЗА ПРАВИЛЬНОЕ РЕШЕНИЕ!!!

Answer 1

Ответ:Cu(NO3)2+ K2S= 2KNO3+ CuS

Коэффициенты 1 +1 = 2+1

Объяснение:

Answer 2

Cu(NO3)2 + K2S = KNO3 + CuS

To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's go through the process step by step:

Balancing the Copper (Cu) atoms:

- There is 1 Cu atom on the left side and 1 Cu atom on the right side. No coefficient is needed for Cu.

Balancing the Nitrogen (N) atoms:

- There are 2 N atoms in Cu(NO3)2 on the left side and 1 N atom in KNO3 on the right side. We need to balance the N atoms by placing a coefficient of 2 in front of KNO3.

Balancing the Oxygen (O) atoms:

- There are 6 O atoms in Cu(NO3)2 on the left side and 3 O atoms in KNO3 on the right side. We need to balance the O atoms by placing a coefficient of 2 in front of KNO3.

Balancing the Potassium (K) atoms:

- There are 2 K atoms in K2S on the left side and 1 K atom in KNO3 on the right side. We need to balance the K atoms by placing a coefficient of 2 in front of K2S.

Balancing the Sulfur (S) atoms:

- There is 1 S atom in K2S on the left side and 1 S atom in CuS on the right side. No coefficient is needed for S.

After balancing all the atoms, the balanced equation is:

Cu(NO3)2 + 2K2S = 2KNO3 + CuS

Please note that the coefficients in front of the formulas represent the number of molecules or formula units, not the number of individual atoms.