Which expression is equivalent to 15 x^3 z^5/ 3 x^7 z^-5 A 12/x^10
B 5x^4
C 5(x/z)^10
D 5(z/x)^10
E 12(z/x)^10

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

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]