Balance the reaction shown below, and determine the ratio of sodium (Na) to copper (Cu).
Na + CuSO4 = Na2SO4 + Cu
A. 2:1
B. 3:2
C. 4:1
D. 1:1
The balanced reaction is:
2Na + CuSO4 → Na2SO4 + Cu
The ratio of sodium to copper is 2:1. Therefore, the answer is A.
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.
First, let's balance the sodium (Na) atoms. There are 2 sodium atoms on the left side, and only 2 sodium atoms on the right side, so it is already balanced.
Next, let's balance the copper (Cu) atoms. There is 1 copper atom on the left side and also 1 copper atom on the right side, so this is also balanced.
Now let's determine the ratio of sodium (Na) to copper (Cu). In this balanced equation, there are 2 sodium atoms (Na) and 1 copper atom (Cu).
So the ratio of sodium (Na) to copper (Cu) is 2:1.
Therefore, the correct answer is A. 2:1.