What the answer ana why ?!

2 15 mL of 0.25 mol L aqueous silver nitrate reacts with 0.10 g of zinc as follows: AgNO3 (aq) + Zn (s) - Ag (s) + Zn(NO3)2 (aq) What mass of silver metal should the reaction produce ? (Note: the equation needs to be balanced) mL 15 mol L1 0.25 g 0.10 : AgNO: (aq) + Zn (s) - Ag (s) + Zn(NO3)2 (aq) : ) 0.16 g 0.20 g b 0.33 g C 0.81g d 3 Five beakers (labelled 1 to 5) each contain 0.5x103 mmol of silver nitrate, dissolved in water. Into each of these beakers is added a certain amount of a metal chloride, also dissolved in water, as shown in the table below. Silver chloride precipitates from solution in all five beakers. Which two beakers contain the maximum mass of silver chloride precipitate? ( 1 5) 0.5x105 mmol | . | . 1 2 3 4 5 0.15 mol CaCl2 0.20 mol AICI: 0.25 mol CaCl2 0.30 mol NaCl 0.40 mol NaCI 1 + 4 a 3 + 5 b 2 + 4 C 2 + 3 d O 5 How many electronic orbitals inside an atom have the following quantum numbers : | n = 4,1 = 3, ml = 0 ( ) : n = 4, 1= 3, ml = 0 7 0 4 b 3 C 1 d 0 e 0