Hiii some one plese put these dates in order 1610,1533,1525,1492,1517,2000,1682, 1521,1519, and 1524

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

What is the ratio fraction form of 25: 9