Question

in the reaction below, water (h2o) is which of the following?
light
6co2 + 6h2o → c6h12o6 + 6o2
reactant
product
catalyst

Explanation:

In a chemical reaction, reactants are substances present at the start that undergo a chemical change. Products are the substances formed as a result of the reaction. A catalyst is a substance that speeds up a reaction without being consumed. In the given photosynthesis reaction, water ($H_2O$) is on the left - hand side of the arrow, which indicates it is a reactant.

Answer:

reactant