Question

19 directions
drag and drop the correct answer choice to each answer blank. or, touch the answer choice followed by the answer blank.
the equation for photosynthesis can be seen below. one part of the equation is missing.
6 co₂ + 6 h₂o → c₆h₁₂o₆ + 6
what needs to be added to balance this equation and follow the law of conservation of mass?
move the correct answer to the box.
co₂ o₂ o₃ he ho₆

Explanation:

Step1: Count atoms on left - hand side

On the left - hand side of the equation $6CO_2 + 6H_2O$, we have 6 carbon (C) atoms, 12 hydrogen (H) atoms and 18 oxygen (O) atoms.

Step2: Analyze atoms in glucose

In $C_6H_{12}O_6$, there are 6 carbon (C) atoms, 12 hydrogen (H) atoms and 6 oxygen (O) atoms.

Step3: Determine remaining oxygen atoms

We need to account for the remaining oxygen atoms. Since we had 18 O atoms on the left and 6 O atoms in glucose, we need 12 more O atoms. Since oxygen gas is $O_2$, we need 6 $O_2$ molecules to balance the oxygen atoms.

Answer:

O2