Which of the following is an example of how chemicals can help the environment

Which of the following units is not an official si unit

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:

Which suspect most likely committed the robbery and how do you know