Students in chemistry class have been given the assignment to use flame test emission data to determine the identity of an unknown substance. When the students put a sample of the unknown compound in the flame, blue and green colors were visible.
What could be one explanation for these results?
A)
The Bunsen burner must not be working properly.
B)
The unknown substance must be a sodium compound.
The unknown substance contained both copper and lead.
D)
It is impossible to narrow down anything about the unknown

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.