Nitrogen gas reacts with oxygen gas according to the equation below (It is not balanced). If 15.0 L of nitrogen are reacted with an excess of hydrogen, how many liters of ammonia (NH3) will be produced, if the reaction occurs at STP?

H2(g) + N2(g) > NH3(g)

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.