Answer:
B. The substances that are formed
Explanation:
a chemical reaction is a reaction that there's a formation of a new compound or substance.
can i have brainliest? and btw, let me know if you get it right! hope i helped <3
Description in biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
I believe the correct answer from the choices listed above is the last option. The term that would best describe the <span>role of hydrogen gas in the formation of a water molecule would be a reactant. Water has a formula of H2O where it contains water so it should be that hydrogen is a reactant. </span>