4. What is the ratio of the mass to the number of
moles of a compound?

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

Which statement is best described as a atom

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.