How many moles of naf must be dissolved in 1.00 liter of a saturated solution of pbf2 at 25˚c to reduce the [pb2+] to 1 x 10–6 molar? (ksp pbf2 at 25˚c = 4.0 x 10–8)

what should students do prior to taking the act science test? o a. determine whether they need to skip the optional act science test prior to registering for a test date o b. take first-year college courses related to science o c. enroll in dual enrollment courses to have a college-level understanding of science o d. take high school courses in earth science, physical science, and biology submit