Question

when applying the criss - cross method, the signs (+ or -) of the ionic charges are included in the resulting subscripts of the chemical formula. false true what is the correct chemical formula for an ionic compound formed between potassium (k⁺) and chlorine (cl⁻) using the criss - cross method? kcl₄ kcl k₂cl₂ k₂cl

Explanation:

1. In the criss - cross method for writing ionic compound formulas, only the magnitudes of the ionic charges are used for the subscripts, not the signs. So the first statement is false.
2. Potassium has a + 1 charge ($K^+$) and chlorine has a - 1 charge ($Cl^-$). Using the criss - cross method, we take the magnitude of the charges. The subscript for potassium is 1 and for chlorine is 1, giving the formula KCl.

Answer:

1. A. False
2. B. KCl