Given the following equation: 2F2 + 2H20 + 4HF + O2 What mass of fluorine is needed to completely react with 3.6 grams of water? Molar mass of F2 = 38.00 g/mol Molar mass of H20 = 18.02 g/mol)

7.59 g

Explanation:

To solve this, you need to look at the stoichiometry of the equation.  For every 2 moles of H₂O, 2 moles of F₂ are needed to completely react.  This means that however many moles of H₂O you have, the same amount of moles are needed for F₂.

Convert grams of H₂O to moles using the molar mass.  moles = 0.1998

Since moles of H₂O are equal to moles of F₂, you have 0.1998 moles of F₂.  Now, convert this to grams using the molar mass.  grams = 7.59

c, liquids evaporate, creating a gas