There are a couple of ways in which you can express the concentration of a solution, and here they are: gram per liter (g/L), molarity (M), parts per million (ppm.), and percents (%).
As you can see, only M appears in your answers, which means that the correct option should be (2) 3.5 M.
Answer:
Unbalanced
Explanation:
The force applied is not the same
There are two oxygens on the left side of the equation and three on the right
