Question

 Расставьте коэффициенты методом электронного баланса в уравнениях реакций, протекающих при взаимодействии цинка с КОНЦЕНТРИРОВАННОЙ серной кислотой. СРОЧНО ПОМОГИТЕ!!НУЖНО ИМЕННО ПРАВИЛЬНЫЙ ОТВЕТ

Answer 1

Ответ:

в фото

Объяснение:

Answer 2

Coefficients for the Reaction of Zinc with Concentrated Sulfuric Acid

When balancing chemical equations, the coefficients represent the number of molecules or moles of each substance involved in the reaction. To balance the equation for the reaction between zinc and concentrated sulfuric acid, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

The balanced equation for the reaction between zinc (Zn) and concentrated sulfuric acid (H2SO4) is as follows:

Zn + H2SO4 → ZnSO4 + H2

To balance this equation using the method of electronic balancing, we can follow these steps:

1. Start by balancing the atoms that appear in only one compound on each side of the equation. In this case, we have zinc (Zn) on the left side and sulfur (S) on the right side.

Zn + H2SO4 → ZnSO4 + H2

2. Balance the atoms that appear in more than one compound. In this case, we have hydrogen (H) and oxygen (O).

Zn + H2SO4 → ZnSO4 + H2

The hydrogen atoms are already balanced, as there are two on both sides of the equation.

For the oxygen atoms, we have four on the right side (two in H2SO4 and two in ZnSO4). To balance the oxygen atoms, we need to add a coefficient of 2 in front of H2SO4.

Zn + 2H2SO4 → ZnSO4 + H2

3. Finally, check if all the atoms are balanced. In this case, we have:

Zinc (Zn): 1 on both sides Hydrogen (H): 4 on both sides Sulfur (S): 1 on both sides Oxygen (O): 4 on both sides

Therefore, the balanced equation for the reaction between zinc and concentrated sulfuric acid is:

Zn + 2H2SO4 → ZnSO4 + H2

Please note that the coefficients provided above are based on the information available and may not be the only possible solution. It is always a good practice to double-check the balanced equation using other reliable sources or chemical calculators.