Question

19.If the chemical equation below is balanced using only whole numbers, what is the smallest whole-number coefficient for water?__ Fe2O3 + __ H2 ---> __ Fe + __ H2OSelect one:a. 1b. 2c. 3d. 4

Answer 1

c. 3

Step-by-step explanation:

To find the coefficient for water, we have to balance the chemical reaction:

`Fe_2O_3+3H_2\rightarrow2Fe+3H_2O`

So, the smallest coefficient for water is 3.