Chemistry, 04.07.2019 03:30 xojade

Answer quickly, i don't understand how to do this properly. 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)

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Answer quickly, i don't understand how to do this properly. potassium forms ions with a charge of +1...