Question

what is the limiting reagent if 2gm of H2 react with 8gm of O2 to form water​

Answer 1

Answer:

H2 molecule is reacting with O2 such that hydrogen releases its electron . Oxygen being the second most electronegative element in the periodic table gains the electron .

Now hydrogen is making an ionic bond with oxygen making hydrogen a cation i.e. reducing (limiting) reagent,

whereas oxygen will be the oxidising reagent