Which of the following substances would have the highest boiling point? *
a. nh₃
c. co
d. ph₃
b. ch₄
why?

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)

What is the mass of 8 moles of sodium atoms

What is the molar mass of a gas that has density of 2.054 g/l