Question 1 options: 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 ( 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)

Given:

Charge on potassium (K) = +1

Charge on selenium (Se) = -2

To determine:

The values of X and Y in K(X)Se(Y)

Explanation:

The molecule which is formed between K and Se is neutral.

The K+ and Se2- ions should combine such that the net charge on the molecule is zero.

X(K+) + Y(Se2-) = 0

X(+1) + Y(-2) = 0

The simplest solution to the above equation is obtained when X = 2 and Y = 1

Thus, the molecule would be: K₂Se₁

Ans: X = 2 and Y = 1; K₂Se₁

The South would destroy the nation, so the North had to fight for the nation’s survival.

Explanation:

the millers tale is the answer.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.