What type of rain contains more acid than normal rain?

Which of the following are correct values for the ideal gas laws constant r

How many grams of phosphorus are contained in 5.09 moles of phosphorus?

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.