5. Challenge: To balance the inputs and outputs of photosynthesis, there should be the same number of carbon, oxygen, and hydrogen atoms on each side of the arrow.
A. Is the formula balanced as written? Why or why not?|
B. Now balance the input/output formula by adding coefficients to each molecule. Write the balanced
formula below, and then check your work by clicking Balance.

The missing equation of the question is -

CO2 + H2O   ⇒ C6H12O6 + O2

No, the given equation is not balanced as the right side of the arrow has more atoms of C, H, and O.

Explanation:

Given equation

CO2 + H2O   ⇒ C6H12O6 + O2

A. It is the equation for the reaction of photosynthesis which converts free carbon dioxide from the atmosphere and water into food or sugar.  The given reaction is not balanced as there are different numbers of atoms of carbon, hydrogen, and oxygen present on both sides of the arrow.  On the right side of the arrow atoms of C, H, and O are more than on the left side.

There are 6 carbon atoms present on the right side of the arrow whereas there is only 1 on the left side similarly hydrogen atoms are 12 and oxygen atoms are 8 in number whereas on the left side number of hydrogen are 2 and three atoms of oxygen.

B.  The correct and balanced equation is :

6CO2 + 6H2O   ⇒ C6H12O6 + 6O2