Molecular weight of AgBr = 187.7
moles of Ag =

moles of Br = moles of Ag = 2.96 x 10⁻³ mol
concentration of HBr (Molarity) = conc. of Br (strong acid) =
(2) Arsenic. It is an element and elements are chemically the simplest units and cannot be broken down by any chemical change.
The element necissary for an eye is plain vision, oxygen,
Hello Lilsavage717, I believe the answer you are looking for is C. or Amino Acids. They are mainly located in living things like plants or bugs.