Question

ionic
\\(a_x b_y\\)
regular fullname
nacl
sodium chloride
\\(\text{cacl}_2\\)
calcium chloride
\\(\text{li}_2\text{so}_4\\)
lithium sulfate
\\(\text{mg(oh)}_2\\)
magnesium hydroxide

Explanation:

Identify the incorrect chemical formula

$$ \text{Lithium sulfate is composed of }\text{Li}^+\text{ and }\text{SO}_4^{2-}. $$

$$ \text{The correct formula is }\text{Li}_2\text{SO}_4. $$

Identify the incorrect subscript ratio

$$ \text{The image shows }\text{Li}_2\text{SO}_4\text{ written with incorrect subscripts: }\text{Li}_2^1\text{SO}_4^1\text{ or similar markings.} $$

$$ \text{The correct subscript ratio for }\text{Li}_2\text{SO}_4\text{ is } 2:1. $$

Answer:

The incorrect chemical formula shown in the image is for lithium sulfate, which is written as \(\text{Li}_2\text{SO}_4\) but has incorrect subscript indicators. The correct chemical formula for lithium sulfate is <blank>\(\text{Li}_2\text{SO}_4\)</blank>.