In this chemical formula: 3NH4 (ammonium) This chemical formula means there are 3 , and 4 in each molecule.

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

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?

Which question could be best answered using the process of scientific inquiry? do different plates have different rock compositions? why did it take so long to develop the theory of plate tectonics? what are different cultural myths caused by plate tectonics? do plates move intentionally to cause volcanic eruptions?