The starting chemicals (hydrogen gas and oxygen gas) are called the reactants and the finishing chemicals is the products (water).
Reactants are the substances used in a chemical reaction, usually on the left side of the reaction arrow. The products are the things that are made after the reacton is complete.
This depends on the reaction involved.
Reactant
product
Reactant- glucose and product- carbon dioxide.
Reactant(s) are the starting material/chemical to a reactiion Product(s) are the final material/chemical at the end of a reaction.
reactant + reactant = product
Reactants are what you start with, and products are what you end up with.
Sugar can be both a reactant and a product.
Sun is a star, not reactant or product.
reactant
This depends on the reaction involved.
sulfur is a reactant
reactant
Reactant
The reactant, because it is reacting to form the product of H2O.
Oxygen is a reactant
product