Question 3/5 2H2S + 302 - 25O2 + 2H2O
How many grams of H20 are produced if 11 grams of O2 are reacted with H2S?
A. 2.06 g H20
B. 4.13 g H2O
C. 8.26 g H20
D. 12.39 g H20

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer