is 4Fe + 3O2 --> 2Fe2O3 balanced?
4Fe + 3O2 --> 2Fe2O3
That is a question you NEVER EVER need to ask. Why? Because you can count. Here is how.
I see 4 Fe on the left side. I see 2 x 2 = 4 Fe on the right side.
I see 3 x 2 = 6 O atoms on the left side. I see 2 x 3 = 6 O atoms on the right side. Of course it's balanced. Technically, since this is a redox reaction, it must be balanced by electron change also. MOST OF THE TIME, BUT NOT ALWAYS, if you balance the atoms the rest will take care of itself.
thx bro i need that for a math question
Well, if you're asking if it's balanced in terms of style, I'd have to say yes. Iron and oxygen are having quite the dance party, with iron bringing three friends to the party for every four oxygen molecules. It's like a perfectly coordinated dance routine. But if you're asking if it's balanced in terms of chemistry, you may want to double-check your coefficients.
To check whether the chemical equation is balanced, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's analyze the equation you provided:
4Fe + 3O2 --> 2Fe2O3
On the left side, there are 4 Fe (iron) atoms and 3 O (oxygen) atoms.
On the right side, there are 2 Fe (iron) atoms and 6 O (oxygen) atoms (since there are 2 Fe2O3 units, each containing 3 O atoms).
As the number of atoms of each element is not balanced, the equation is not balanced.
To balance it, we need to adjust the coefficients in front of each compound or element. Following the steps for balancing, the balanced equation is:
4Fe + 3O2 --> 2Fe2O3
To check whether the chemical equation 4Fe + 3O2 --> 2Fe2O3 is balanced, we need to ensure that the number of atoms of each element is the same on both sides of the equation.
Let's break down the equation and count the number of atoms on each side:
On the left side, we have:
4 iron (Fe) atoms
3 oxygen (O2) molecules, which means 3 × 2 = 6 oxygen atoms
On the right side, we have:
2 iron (Fe) atoms
3 × 2 = 6 oxygen (O) atoms
The equation is balanced if the number of atoms of each element is the same on both sides. In this case, we can see that there are 4 iron atoms on the left side and 2 iron atoms on the right side, so they are not equal. Similarly, there are 6 oxygen atoms on the left side and 6 oxygen atoms on the right side, so they are equal.
To balance the equation, we need to adjust the coefficients in front of the reactants and products.
To balance the iron (Fe) atoms, we can put a coefficient of 2 in front of Fe on the left side. This gives us:
2 × 4Fe + 3O2 --> 2Fe2O3
Now, we have:
8 iron (Fe) atoms on the left side
6 oxygen (O2) molecules, which means 6 × 2 = 12 oxygen atoms on the left side
2 iron (Fe) atoms on the right side
3 × 2 = 6 oxygen (O) atoms on the right side
The equation is now balanced because both sides have 8 iron atoms and 12 oxygen atoms.
Therefore, the balanced equation is:
8Fe + 3O2 --> 4Fe2O3