The number of H₂O molecules needed to react with 1 atom of Be to form H₂ and BaOH)₂ is

Question

Quizplus · Accepted Answer

The balanced chemical equation for the reaction is: Be + 2H₂O → H₂ + BaOH)₂ From the equation, we can see that 2 molecules of H₂O are needed to react with 1 atom of Be. Therefore, to react with 1 atom of Be, we need 2 x (6.022 x 10^23) = 1.2044 x 10^24 molecules of H₂O. This is equivalent to 2 moles of H₂O or 2 x 86.07 g = 172.14 g of H₂O. However, since none of the answer choices match these values exactly, we must choose the closest one, which is B - 2 molecules.

The Number of H2O Molecules Needed to React with 1

The Number of H₂O Molecules Needed to React with 1