Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg) ion has a +2 charge. Chlorate (CIO) has a -1 charge.

Question

(1 point)
• Mg2 (CIO4)
• Mg(CIO3) 2
• Mg2 (CIO3)
• Mg(CIO3)

Answer 1

The correct chemical formula for magnesium chlorate is Mg(ClO3)2.

Here's how we determine this:

1. Magnesium (Mg) has a +2 charge, written as \( \text{Mg}^{2+} \).
2. Chlorate (ClO3) has a -1 charge, written as \( \text{ClO3}^{-} \).
3. Since there are two chlorate ions needed to balance the +2 charge of magnesium, the formula will have one magnesium ion and two chlorate ions.

Therefore, the formula is \( \text{Mg(ClO3)}_2 \).

Note: The chlorate ion was initially represented as (CIO), but it should be (ClO3).

Looking at the answer choices provided, the correct one is:

• Mg(CIO3)2.