Respuesta :
Answer:
9
Step-by-step explanation:
2(H2) + 02 -> 2(H2O) this is a correct balanced equation
now to solve for grams of H20 with 8 grams of O2 you must turn 8 grams O2 into moles then use the coefficients of the O2 and the H2O, then turn moles of H2O into grams of H20.
8 grams O2 x 1 mol O2 / 32 grams O2 (molar mass)
2 mol H20 (coefficients) / 1 mol O2 (coefficients)
18.02 grams H2O (molar mass) / 1 mol H20
this is 9 grams H20
If you need more help, don't hesitate to ask!
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