The student collects the h2(g) produced by the reaction and measures its volume over water at 298 k after carefully equalizing the water levels inside and outside the gas-collection tube, as shown in the diagram below. The volume is measured to be 45. 6ml. The atmospheric pressure in the lab is measured as 765 torr , and the equilibrium vapor pressure of water at 298 k is 24 torr.

The answer is oh i forgot 

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

No, mark me ! ((brainliest))