Which molecule is nonpolar due to a symmetrical distribution of charge

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.