Question

10
what are the products of this reaction? * (0.5 points)
mg + i₂ ->
○ mgi
○ mg₂i
○ mgi₂
○ mgi + i

Explanation:

Step1: Determine oxidation states

Magnesium (Mg) has an oxidation state of +2 (group 2 metal). Iodine (I) in \(I_2\) has an oxidation state of 0, and in ionic compounds, iodine typically has an oxidation state of -1.

Step2: Balance charges in the compound

To form a neutral compound, the positive charge from Mg (+2) must balance the negative charges from I. Let the formula be \(MgI_x\). The charge balance gives \(+2 + x(-1) = 0\), so \(x = 2\). Thus, the compound is \(MgI_2\).

Step3: Write the reaction

The reaction is a combination (synthesis) reaction: \(Mg + I_2
ightarrow MgI_2\).

Answer:

\(MgI_2\) (corresponding to the option \(MgI_2\))