2!
The reactant, because it is reacting to form the product of H2O.
Hydrogen gas can be both a product and a reactant depending on the chemical reaction. In some reactions, hydrogen gas is produced, while in others it is consumed.
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.
Combining hydrogen and oxygen to create water demonstrates the law of conservation of matter, which states that matter cannot be created or destroyed in a chemical reaction, only rearranged. In this reaction, the number of atoms of each element on the reactant side (hydrogen and oxygen) must equal the number of atoms of each element on the product side (water), showing that no atoms are gained or lost during the reaction.
The reactant, because it is reacting to form the product of H2O.
Hydrogen gas can be both a product and a reactant depending on the chemical reaction. In some reactions, hydrogen gas is produced, while in others it is consumed.
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.
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
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
This is the law of mass conservation.
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)
The rate at which a reactant is consumed is directly related to the rate at which a product is formed in a chemical reaction, reflecting the stoichiometry of the reaction. According to the law of conservation of mass, the amount of reactant used up will equal the amount of product produced, assuming no side reactions occur. Thus, the speed of reactant consumption and product formation can be expressed in terms of their molar concentrations over time, often measured in terms of reaction rate.
produce
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.
It may be either a reactant or a product depending on what the reaction is. If you react elemental zinc with sulfuric acid to form zinc sulfate and hydrogen, then it is a product. If you react aqueous zinc sulfate with sodium hydroxide to form solid zinc hydroxide and sodium sulfate, then it is a reactant.