More arrows Consider our archer from Exercise 18.
a) How many bull’s-eyes do you expect her to get?
b) With what standard deviation?
c) If she keeps shooting arrows until she hits the bull’s-
eye, how long do you expect it will take?
Will precipitate occur when the following solutions are mixed? If so, write a balanced chemical equation for the reaction.
1. Na2CO3 and AgNO3
2. NaNO3 and NiSO4
3. FeSO4 and Pb(NO3)2