Complete and balance the following equation. If no reaction occurs, write noreaction .
NaOH(aq)+FeBr3(aq)→
3NaOH(aq) + FeBr3(aq)→ Fe(OH)3 + 3NaBr
To balance the equation, we need to ensure that the number of atoms of each element is equal on both sides.
NaOH(aq) + FeBr3(aq) →
First, let's balance the sodium (Na) atoms:
There is one Na on the left side and none on the right side, so we can add a coefficient of 3 to NaOH:
3 NaOH(aq) + FeBr3(aq) →
Next, let's balance the bromine (Br) atoms:
There are three Br in FeBr3 and only one in NaOH. To balance them, we need to add a coefficient of 3 to FeBr3:
3 NaOH(aq) + 3 FeBr3(aq) →
Finally, let's balance the oxygen (O) and hydrogen (H) atoms:
There are three O atoms in NaOH and none in FeBr3. To balance them, we need to add a coefficient of 3 to H2O (water) on the right side:
3 NaOH(aq) + 3 FeBr3(aq) → 3 H2O(l)
The balanced equation is:
3 NaOH(aq) + 3 FeBr3(aq) → 3 H2O(l)
To balance the equation, we need to make sure that the number of each type of atom is the same on both sides of the equation.
Let's start by identifying the elements in the equation: sodium (Na), oxygen (O), hydrogen (H), iron (Fe), and bromine (Br).
The equation given is: NaOH(aq) + FeBr3(aq) → ?
Start with the simpler elements (Na, H, and O) before balancing the more complex ones (Fe and Br).
Looking at the left side, we have NaOH(aq) which consists of Na, O, and H. On the right side, we have FeBr3(aq) which contains Fe and Br. We should start by balancing Na, O, and H on the left side.
In NaOH(aq), there is one Na, one O, and one H atom.
On the right side, we have FeBr3(aq), which contains one Fe atom and three Br atoms.
Let's balance the Na first. To have an equal number of Na atoms on both sides, we need to put a coefficient of 3 in front of NaOH(aq). This gives us:
3NaOH(aq) + FeBr3(aq) → ?
Next, we need to balance the O atoms. On the left side, there are three O atoms (from three NaOH molecules). On the right side, there are three O atoms (from FeBr3). The oxygen atoms are already balanced, so we can move on to balancing H.
There are three H atoms on the left side (from three NaOH molecules). On the right side, there are no H atoms, so we need to balance them by putting a coefficient of 3 in front of H2O on the right side. This gives us:
3NaOH(aq) + FeBr3(aq) → 3H2O(l) + ?
Finally, we need to balance the Fe and Br atoms. On the left side, there is one Fe atom, and on the right side, there is one Fe atom as well. So, Fe is already balanced.
On the left side, we have three Br atoms (from three Br molecules in FeBr3), while on the right side, there are three Br atoms (from three Br atoms in FeBr3). Therefore, the bromine atoms are already balanced.
The balanced equation is:
3NaOH(aq) + FeBr3(aq) → 3H2O(l) + Fe(OH)3(s)
Please note that Fe(OH)3 is the formula for iron(III) hydroxide, which is a solid.
Remember, in future chemistry problems, you can start with any element and balance it step by step. Once you have completed balancing all the elements, double-check that all atoms are balanced on both sides of the equation.