The reactant, because it is reacting to form the product of H2O.
The product is what is produced at the end of a chemical reaction. Example | H2 (Reactant) + O (Reactant) -----> H2O (Product)
It can be both.
Hydrogen can be a reactant or a product, it depends on the chemical reaction. Anything to the left of the arrow is consumed by the reaction and is thus a reactant, so hydrogen is a reactant in the reaction O2 + 2H2 -> 2H2O. A product is on the right of the arrow and is produced by the reaction, so hydrogen is a product in the reaction Zn + 2HCl -> ZnCl2 + H2
For copper, it is an element. It could be both reactant and product. While purifying copper will be the product. But copper would be the reactant in case of preparing hydrogen or copper sulphate salts.
Depending on the reaction, may be reactant or product.
Water can be either a reactant, or a product. It really depends on the type of chemical equation. Here are examples of both water being on the reactant side, and the product side. Reactants 2H2O ===> 2H2 + O2 HCl + H2O ===> Cl- + H3O+ Products CH4 + 2O2 ===> CO2 + 2H2O 2H2O2 ===> 2H2O + O2
The product is what is produced at the end of a chemical reaction. Example | H2 (Reactant) + O (Reactant) -----> H2O (Product)
It can be both.
Hydrogen can be a reactant or a product, it depends on the chemical reaction. Anything to the left of the arrow is consumed by the reaction and is thus a reactant, so hydrogen is a reactant in the reaction O2 + 2H2 -> 2H2O. A product is on the right of the arrow and is produced by the reaction, so hydrogen is a product in the reaction Zn + 2HCl -> ZnCl2 + H2
For copper, it is an element. It could be both reactant and product. While purifying copper will be the product. But copper would be the reactant in case of preparing hydrogen or copper sulphate salts.
the product of an equation is the multiples made by them
For copper, it is an element. It could be both reactant and product. While purifying copper will be the product. But copper would be the reactant in case of preparing hydrogen or copper sulphate salts.
the reactants are hydrogen and water, and the product is oxygen.
In some reactions water is a reactant, but in others it is a product. Ex: HCl + NaOH --> NaCl + water (water is a product) Na + water --> NaOH + hydrogen gas (water is a reactant)
produce
Depending on the reaction, may be reactant or product.
I think Hydrogen Peroxide is a reactant,because hydrogen and oxygen are reactants so hydrogen peroxide should be a reactant.