A student tried to solve the following problem by selecting the tile as shown. What, if anything, did the student do wrong? 2AgNO3 (aq) + Cu (s) 2Ag (s) + Cu(NO3)2 (aq)

How many moles of silver nitrate are needed to produce 6.75 moles of copper nitrate upon reacting with excess copper?

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.