Вопрос
Merozos Mg+H_(2)SO_(4)=MgSO_(4)+H_(2)S+H_(2)O
Решения
4.6
(471 Голоса)
Борислав
Экспертная проверка
мастер · Репетитор 5 лет
Ответ
The given chemical equation is:
This equation represents the reaction between magnesium (Mg) and sulfuric acid (H₂SO₄) to produce magnesium sulfate (MgSO₄), hydrogen sulfide (H₂S), and water (H₂O).To balance this chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.Let's start by counting the number of atoms of each element in the unbalanced equation:- Mg: 1 atom on the left, 1 atom on the right- H: 2 atoms on the left, 3 atoms on the right- S: 1 atom on the left, 1 atom on the right- O: 4 atoms on the left, 5 atoms on the rightWe can see that the number of hydrogen and oxygen atoms are not balanced. To balance the equation, we need to adjust the coefficients (the numbers in front of the compounds).Let's start by balancing the hydrogen atoms. We have 2 hydrogen atoms on the left side and 3 on the right side. To balance the hydrogen atoms, we can put a coefficient of 2 in front of H₂S:
Now, let's count the atoms again:- Mg: 1 atom on the left, 1 atom on the right- H: 2 atoms on the left, 6 atoms on the right- S: 1 atom on the left, 1 atom on the right- O: 4 atoms on the left, 5 atoms on the rightWe still have an imbalance in the number of hydrogen and oxygen atoms. To balance the oxygen atoms, we can put a coefficient of 2 in front of H₂SO₄:
Now, let's count the atoms again:- Mg: 1 atom on the left, 1 atom on the right- H: 4 atoms on the left, 6 atoms on the right- S: 2 atoms on the left, 1 atom on the right- O: 8 atoms on the left, 5 atoms on the rightWe still have an imbalance in the number of sulfur and oxygen atoms. To balance the sulfur atoms, we can put a coefficient of 3 in front of H₂S:
Now, let's count the atoms again:- Mg: 1 atom on the left, 1 atom on the right- H: 4 atoms on the left, 6 atoms on the right- S: 2 atoms on the left, 2 atoms on the right- O: 8 atoms on the left, 8 atoms on the rightNow, the equation is balanced. The balanced chemical equation is: