Question 11
Balance the following the chemical equation
_Mg + _ F2 → _ MgF2
A. 1:1:2
B. 1:1:1
C. 1:2:1
D. 2:1:1
The balanced chemical equation for the reaction between magnesium (Mg) and fluorine (F2) to form magnesium fluoride (MgF2) is:
Mg + F2 → MgF2
To balance the equation, we need to ensure that the number of atoms on both sides is equal. Counting the number of atoms for each element:
Mg: 1 on both sides
F: 2 on the left side and 2 on the right side
Therefore, the balanced equation is:
1 Mg + 1 F2 → 1 MgF2
So, the answer is B. 1:1:1.
To balance the chemical equation Mg + F2 -> MgF2, we need to make sure that there are equal numbers of each type of atom on both sides of the equation.
Looking at the left side of the equation, we have one magnesium atom (Mg) and one fluorine molecule (F2).
On the right side of the equation, we have one magnesium fluoride molecule (MgF2), which contains one magnesium atom and two fluorine atoms.
To balance the equation, we need to have the same number of magnesium atoms and fluorine atoms on both sides.
Therefore, the correct answer is A. 1:1:2, indicating that we need 1 magnesium atom, 1 fluorine molecule, and 2 magnesium fluoride molecules to balance the equation.
To balance the chemical equation, you need to ensure that the same number of atoms of each element is present on both sides of the equation.
Let's analyze the equation:
_Mg + _ F2 → _ MgF2
We can start by balancing the magnesium (Mg) atoms. There is one Mg atom on the left side and one on the right side, so we can assign a coefficient of 1 to Mg.
1Mg + _ F2 → _ MgF2
Moving on to the fluorine (F) atoms, there are two F atoms in the compound F2 on the left side. To balance it, we need to have the same number of F atoms on the right side. Since there is one Mg atom on the right side, we should have two F atoms to form MgF2. Therefore, we assign a coefficient of 2 to F2.
1Mg + 2F2 → _ MgF2
Now, let's check the number of MgF2 molecules on the right side. To balance it, we need to have the same number of MgF2 molecules on the left side. Since there is one Mg atom on the left side, we need one MgF2 molecule. Thus, we assign a coefficient of 1 to MgF2.
1Mg + 2F2 → 1MgF2
Now the equation is balanced. Looking at the coefficients, we have 1:2:1, which means there is 1 magnesium atom, 2 fluorine atoms, and 1 magnesium fluoride (MgF2) molecule.
Therefore, the balanced chemical equation is: 1 Mg + 2 F2 → 1 MgF2
The answer is C. 1:2:1