Could you explain this problem to me?

What is the sum of the coefficients (including “1”) of the balanced equation?
__CaCO3 + __NaF __ CaF2 + __Na2CO3

a.

Sure! To find the sum of the coefficients (including "1") of the balanced equation, we need to balance the equation first.

We start by counting the number of atoms on each side of the equation:

Left Side (Reactants):
- Calcium (Ca): 1 atom
- Carbon (C): 1 atom
- Oxygen (O): 3 atoms
- Sodium (Na): 1 atom
- Fluorine (F): 1 atom

Right Side (Products):
- Calcium (Ca): 1 atom
- Fluorine (F): 2 atoms
- Sodium (Na): 2 atoms
- Carbon (C): 1 atom
- Oxygen (O): 3 atoms

To balance the equation, we need to place coefficients in front of the chemical formulas to ensure that the number of atoms on both sides are equal.

Starting with the Calcium atoms, we see that there is already one Calcium atom on both sides, so we don't need to adjust the coefficient.

Next, let's balance the Carbon atoms. There is already one Carbon atom on both sides, so we don't need to adjust the coefficient here either.

Moving on to Oxygen atoms, we see that there are already 3 Oxygen atoms on both sides, so we don't need to adjust the coefficient for Oxygen either.

Now let's balance the Sodium atoms. On the left side, we have 1 Sodium atom, while on the right side, we have 2 Sodium atoms. To balance this, we need to place a coefficient of 2 in front of NaF.

Finally, let's balance the Fluorine atoms. On the left side, we have 1 Fluorine atom, while on the right side, we have 2 Fluorine atoms. To balance this, we need to place a coefficient of 2 in front of CaF2.

The balanced equation now looks like this:
CaCO3 + 2NaF → CaF2 + Na2CO3

Now, to find the sum of the coefficients (including "1") of the balanced equation, we simply add up all the coefficients:

1 + 2 + 1 + 1 + 1 = 6

Therefore, the sum of the coefficients (including "1") of the balanced equation is 6.