A mixture of N2(g) and H2(g) reacts in a closed container to form ammonia, NH3(g). The reaction
ceases before either reactant has been totally
consumed. At this stage 1.8 mol N2, 1.8 mol H2,
and 1.8 mol NH3 are present.
How many miles of N2 and H2 were present originally.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

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?

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride