1. 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)
ANO.) are
How many moles of silver nitrate (AgNO3) are
needed to produce 6.75 moles of copper (II) nitrate
(Cu(NO3)2) upon reacting with excess copper (Cu)?
6.75 mol Cu(NO3)
2
1
mol Cu(NO3)2
2 mol AgNO3
O A The student chose the wrong tile to solve the problem.
OB. The student chose the correct tile, but needs to flip the tile to make the units cancel.
OC. The student chose the correct tile, but needs to add a second tile to finish the solution
O D. There is nothing wrong. The problem is ready to be solved.