Question

If the products of a reaction are co2 and 2h2o what is known about the reactants

Answer 1

The reactants have one C atom and four O and H atoms. Hope this helps :)

Answer 2

Answer: The reactants must contain 1 atom of carbon, 4 atoms of hydrogen and 4 atoms of oxygen.

Explanation:

Reactants and products together form a chemical equation.

A balanced chemical equation always follow law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.

We are given:

Products are $CO_2\text{ and }2H_2O$. This means that the products has 1 atom of carbon, 4 atoms of hydrogen and 4 atoms of oxygen.

Hence, the reactants must also contain the same number of atoms.