Silver exists in nature of two isotopes: Ag-107 and Ag-109. If the average atomic mass of silver is 107.9 u, which isotope is more abundant? Explain your answer.

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:

What causes most sediment to wash or fall into a river