The reaction for the formation of ammonia is given a N2(g) + 3H2(g) = 21H3(g)
write the vate reaction for :
a) the formation of NH₃.
6) the disappearance of N and H₂​

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?