# How would you identify the reactants and products in the chemical reaction below?

## $6 C {O}_{2} + 6 {H}_{2} O \to {C}_{6} {H}_{12} {O}_{6} + 6 {O}_{2}$

Sep 21, 2016

Typically $\text{LHS}$ $=$ $\text{reactants}$; $\text{RHS}$ $=$ $\text{products}$

#### Explanation:

Of course, you have described the photosynthesis reaction, which is an endothermic reaction. From where does the energy come?

The reverse equation is clearly a combustion reaction. And this is an exothermic reaction, i.e. one that releases energy.

${C}_{6} {H}_{12} {O}_{6} + 6 {H}_{2} O \rightarrow 6 C {O}_{2} + 6 {H}_{2} O + \Delta$

So whether you call the right hand side the products or the reactants depends on whether you are a green plant.