nitrogen gas and hydrogen gas
Nitrogen and hydrogen react to form ammonia. This is the reaction in the Haber process, in which the gases are mixed at high pressure and moderately high temperature and passed over an iron catalyst.
Reactants
The substances you have at the beginning of a chemical reaction are the reactants or the reagents.
"Which" implies choices... Where are they??
Reactants are added into the equation to form the chemical reaction. Reactants are substances that are changed into products. Without these reactants, there would be no formula, resulting in no product.
hydrogen and oxygen
Nitrogen and hydrogen react to form ammonia. This is the reaction in the Haber process, in which the gases are mixed at high pressure and moderately high temperature and passed over an iron catalyst.
Reactants
The reactants
The substances you have at the beginning of a chemical reaction are the reactants or the reagents.
The chemical equation Mg + H2S -> MgS + H2.
The reactants in this reaction are sodium (Na) and hydrochloric acid (HCl).
"Which" implies choices... Where are they??
Reactants are added into the equation to form the chemical reaction. Reactants are substances that are changed into products. Without these reactants, there would be no formula, resulting in no product.
The reactants in this reaction are sodium (Na) and hydrochloric acid (HCl).
This is considered to be a chemical reaction because it is not possible to rearrange water and oxygen to form hydrogen peroxide. This is science studied.
The substances you have at the beginning of a chemical reaction are called the reactants.