This equation describes the process of cellular respiration. C6H12O6 + 6O2 → 6CO2 + 6H2O Which is a true statement? A. The...

For the chemical reaction

`C_6H_12O_6 + 6O_2 ->6 CO_2 + 6H_2O`

the reactants are C6H12O6 and O2, so B is correct.

A chemical equation shows the reactants, which are the substances reacting or being used up, on the left side of the arrow. The products, which are the substances produced, are on the right side of the arrow. The arrow means "yields" or "produces". The arrow also functions as an equal sign because the number of atoms of reactants must equal the number of atoms of products.

Cellular respiration is an example of a combustion reaction, is which a hydrocarbon reacts with oxygen. The products are always carbon dioxide and water. This is the process by which glucose is broken down in cells to produce energy.

You may have noticed that this equation is the reverse of the equation for photosynthesis. In photosynthesis C6H12O6 (glucose) and oxygen are produced, so they're shown on the right side of the arrow. Water and carbon dioxide, which are used in photosynthesis, are shown on the left side of the arrow.