Assuming it's copper(II) oxide, the equation for that reaction is:
CuO + H2 --> H2O + Cu.
Reactants: copper oxide and hydrogen gas.
Products: Water and copper.
Elements present: hydrogen, copper.
Compounds present: copper oxide, water.
Metals: copper.
Non-metals: hydrogen.
When the mass of reactants is equal to the mass of reactants an equation is balanced.
The coefficients in a balanced chemical equation indicate the relative numbers of reactants and products in a chemical reaction. Each coefficient represents the moles of each substance involved in the reaction.
The reactants must be balanced correctly with reactants.
Mass stoichiometry refers to the study of the mass relationships of elements in compounds. It involves analyzing the stoichiometric coefficients in a balanced chemical equation to determine the relative masses of reactants and products. This helps in calculating the amount of reactants needed or products formed in a chemical reaction.
The model that names all the chemicals in a reaction is called the chemical equation. It represents the reactants, products, and their respective symbols and formulas in a balanced format to show the chemical changes that occur during the reaction.
the moles of the reactants and products
The subscripts determine what the chemicals are, you have to change the amount of the reactants/products rather than change what the reactants/products actually are eg O2 is oxygen gas, if you wanted 4 of them to balance it it would have to be 2 O2 otherwise it wouldn't be oxygen gas any more.
For the reactants to be calculated into the products.
a balanced equation shows the correct proportion and mole/grams of the reactants involved....
the coefficients of a balanced reaction
The stoichiometric equivalent of the reactants in a chemical reaction refers to the balanced ratio of the reactants based on their coefficients in the balanced chemical equation. It shows the precise amount of each reactant needed for the reaction to proceed completely without any excess or deficiency.
You get the reactants, products, and the ratio that the chemicals react in. It also gives information on what processes the chemicals are undergoing, such as oxidation/reduction and acid/base.