PLEASE HELP!

Based on the balanced chemical equation :
2H2 + O2 -> 2H2O
Which conversion factors will you need to calculate the mass of H2O that is made when 8 grams of H2 react ?

PLEASE HELP Based on the balanced chemical equation 2H2 O2 gt 2H2O Which conversion factors will you need to calculate the mass of H2O that is made when 8 grams class=