calculate the final temperature when a 20.00 g silver spoon at 20.5 C is placed into a near boiling, 90.0 C, cup, 250.0 g of coffee. S(Ag) = 0.235 J/g. C
S(coffee) = S(water) = 4.184 J/g. C. remember to write down answer with the correct number of significant figures.