Chemistry, 04.12.2020 04:30 bobbykemp300

Please help! 1. Potassium forms ions with a charge of +1(K^+). Iodine forms ions with a charge of -1. Selenium forms ions with a charge of -2 (Se^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’s not strictly necessary)
X = ?
Y = ?

2. Calcium forms ion with a charge of +2. Iodine forms with a charge of -1.

Which of the following represents and ionic compound composed of Calcium and Iodine ions?

A) CaI2
B) CaI
C)Ca2I
D)2CaI

Answers: 2

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Please help! 1. Potassium forms ions with a charge of +1(K^+). Iodine forms ions with a charge of -...