Question

Помогите если не сложно!))Даю 60 баллов Расставьте коэффициенты в уравнениях методом электронного баланса. Помогите определить концентрацию азотной кислоты Mg+HNO3=Mg(NO3)+NH3+H2O Zn+HNO3=Zn(NO3)+N2+H2O HNO3+Cu=Cu(NO3)+NO+H2O Cu+HNO3=Cu(NO3)+NO2+H2O

Answer 1

Вот уравнения
В скобочках написаны коэффициенты если не видно 
С концентрацией к сожалению не помогу 

Answer 2

Balancing Chemical Equations

To balance the given chemical equations using the method of electronic balancing, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's balance each equation step by step:

1. Mg + HNO3 = Mg(NO3)2 + NH3 + H2O

To balance this equation, we start by balancing the atoms that appear in the fewest compounds. In this case, we can start with nitrogen (N) and hydrogen (H).

- Balancing nitrogen (N): - There are 1 nitrogen atom on the left side and 2 nitrogen atoms on the right side. To balance it, we need to put a coefficient of 2 in front of NH3. - The equation becomes: Mg + HNO3 = Mg(NO3)2 + 2NH3 + H2O.

- Balancing hydrogen (H): - There are 3 hydrogen atoms on the left side and 6 hydrogen atoms on the right side. To balance it, we need to put a coefficient of 3 in front of HNO3. - The equation becomes: Mg + 3HNO3 = Mg(NO3)2 + 2NH3 + H2O.

- Balancing magnesium (Mg): - There is 1 magnesium atom on the left side and 1 magnesium atom on the right side. It is already balanced.

Now the equation is balanced as follows: Mg + 3HNO3 = Mg(NO3)2 + 2NH3 + H2O.

2. Zn + HNO3 = Zn(NO3)2 + N2 + H2O

- Balancing nitrogen (N): - There is 1 nitrogen atom on the left side and 2 nitrogen atoms on the right side. To balance it, we need to put a coefficient of 2 in front of HNO3. - The equation becomes: Zn + 2HNO3 = Zn(NO3)2 + N2 + H2O.

- Balancing hydrogen (H): - There are 6 hydrogen atoms on the left side and 6 hydrogen atoms on the right side. It is already balanced.

- Balancing zinc (Zn): - There is 1 zinc atom on the left side and 1 zinc atom on the right side. It is already balanced.

Now the equation is balanced as follows: Zn + 2HNO3 = Zn(NO3)2 + N2 + H2O.

3. HNO3 + Cu = Cu(NO3)2 + NO + H2O

- Balancing nitrogen (N): - There is 1 nitrogen atom on the left side and 2 nitrogen atoms on the right side. To balance it, we need to put a coefficient of 2 in front of NO. - The equation becomes: HNO3 + Cu = Cu(NO3)2 + 2NO + H2O.

- Balancing hydrogen (H): - There are 1 hydrogen atom on the left side and 2 hydrogen atoms on the right side. To balance it, we need to put a coefficient of 2 in front of HNO3. - The equation becomes: 2HNO3 + Cu = Cu(NO3)2 + 2NO + H2O.

- Balancing copper (Cu): - There is 1 copper atom on the left side and 1 copper atom on the right side. It is already balanced.

Now the equation is balanced as follows: 2HNO3 + Cu = Cu(NO3)2 + 2NO + H2O.

4. Cu + HNO3 = Cu(NO3)2 + NO2 + H2O

- Balancing nitrogen (N): - There is 1 nitrogen atom on the left side and 2 nitrogen atoms on the right side. To balance it, we need to put a coefficient of 2 in front of HNO3. - The equation becomes: Cu + 2HNO3 = Cu(NO3)2 + NO2 + H2O.

- Balancing hydrogen (H): - There are 2 hydrogen atoms on the left side and 4 hydrogen atoms on the right side. To balance it, we need to put a coefficient of 4 in front of HNO3. - The equation becomes: 4HNO3 + Cu = Cu(NO3)2 + NO2 + H2O.

- Balancing copper (Cu): - There is 1 copper atom on the left side and 1 copper atom on the right side. It is already balanced.

Now the equation is balanced as follows: 4HNO3 + Cu = Cu(NO3)2 + NO2 + H2O.

Determining the Concentration of Nitric Acid

To determine the concentration of nitric acid (HNO3) in each equation, we need additional information such as the volume of the solution or the amount of reactants and products involved. The given equations alone do not provide enough information to calculate the concentration of nitric acid.

If you have any additional information or specific requirements, please provide them so that I can assist you further.