35 points. potassium forms ions with a charge of +1 (ka+). iodine forms ions with a charge of -1. selenium forms ions with a charge of -2 ( imagine that potassium ions and selenide ions combine to form potassium selenide. what numbers would be in the place of x and y in: kxsey (use the number 1 even if it isn't strictly necessary)

In extractions, usually this anion is exchanged for a larger anion. A structure for a common type of extraction complex formed in such extractions is shown in the figure. This complex consists of the long-chain ammonium ions and two anions X- and Y- of different sizes. The small anion X- receives two hydrogen bonds from a pair of ammonium ions, and the larger anion Y- receives none. In the molybdenum problem studied at ORNL, the small anion was chloride Cl- and the large anion had the complicated formula PMo12O403-. The entire complex contained this large anion, three chloride ions, and six ammonium ions. Unfortunately, an X-ray structure of this unwieldy complex could not be obtained, but the general structure shown at right was in fact demonstrated for the first time on a related compound.

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explanation:

because it is