What is the sum of the coefficients when the following equation is balanced with the simplest whole numbers? If a substance has an understood 1 as the coefficient, do not forget to add it in.
Fe2O3 (s) + C (s) → Fe (s) + CO2 (g)

Question

Cameron Andrews · Accepted Answer

#12#

#Fe_2O_3 (s)+C (s)rarrFe (s)+CO_2 (g)#

There are two iron (Fe) atoms and one carbon (C) atom on the left side and one on the right side, respectively. There are three oxygen (O) atoms and two on the left side.

Our oxygen content is odd, so we should probably start by balancing that.

Multiply by #2#: #2Fe_2O_3 (s)+C (s)rarrFe (s)+CO_2 (g)#

Let's balance the oxygen on the other side by multiplying by #3#: #2Fe_2O_3 (s)+C (s)rarrFe (s)+3CO_2 (g)#

Balance the carbon by multiplying by #3# on the LHS: #2Fe_2O_3 (s)+3C (s)rarrFe (s)+3CO_2 (g)#

Finally, balance the iron by multiplying by #4# on the LHS: #2Fe_2O_3 (s)+3C (s)rarr4Fe (s)+3CO_2 (g)#

In its most basic form, this is our balanced equation.

The sum of the coefficients is #2+3+4+3=12#.

Naomi Aronson · Answer

undefined 7

Luna Chen · Answer

undefined To balance the given chemical equation:

Fe2O3 (s) + C (s) → Fe (s) + CO2 (g)

We need to ensure that the number of each type of atom is the same on both sides of the equation.

The balanced equation is:

Fe2O3 (s) + 3C (s) → 2Fe (s) + 3CO2 (g)

Now, we sum the coefficients:

$2 + 3 + 2 + 3 = 10$

So, the sum of the coefficients is 10.

What is the sum of the coefficients when the following equation is balanced with the simplest whole numbers? If a substance has an understood 1 as the coefficient, do not forget to add it in. Fe2O3 (s) + C (s) → Fe (s) + CO2 (g)