Nvm solved 1. A solution contains 0.0450 M Ca2+ and 0.0930 M Ag+. If solid Na3PO4 is added to this mixture, which of the phosphate species would precipitate out of solution first? It is Ca3(PO4)2 2.

2. When the second cation just starts to precipitate, what percentage of the first cation remains in solution? percentage = ? %

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents