Nitrogen (n2) and hydrogen (h2) react to form ammonia (nh3). consider a mixture of six nitrogen molecules and six hydrogen molecules in a closed container. assuming the reaction goes to completion, what will the final product mixture be?
a. number of nh3 molecules
b. number of n2 molecules
c. number of h2 molecules
which of the following equations best represents this reaction?
a. 42 n2 + 6 h2 4 nh3
b. 6 n2 + 6 h2 4 nh3 + 4 n2
c. n + 3 h2 nh3
d. n2 + 3 h2 2 nh3
e. n2 + h2 nh3

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas