How many grams of water produced if we react 3 moles of hydrogen with 3 moles of oxygen

This drawing shows a human body system. what is the primary function of this body system?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?