How many moles of hydrogen, H2, are needed to react with 6.0 moles of nitrogen, N2?

A__ is two or more substances that are together in the same place but are not chemically combined

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong