Given the balanced equation representing a reaction:
4nh3 + 5o2 ==> 4no + 6h2o
what is the minimum number of moles of o2 that are needed to completely react with 16 moles of nh3?
(1) 16 mol (3) 64 mol
(2) 20. mol (4) 80. mol

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?