QuestionAugust 6, 2025

When the following half reaction is balanced, how many electrons are present and are they on the reactants or products side of the equation? Ti^2+(aq)arrow TiO_(2)(s) Number of electrons: square Side of equation: square

When the following half reaction is balanced, how many electrons are present and are they on the reactants or products side of the equation? Ti^2+(aq)arrow TiO_(2)(s) Number of electrons: square Side of equation: square
When the following half reaction is balanced, how many electrons are present and are they on the reactants or products side of the equation?
Ti^2+(aq)arrow TiO_(2)(s)
Number of electrons: square 
Side of equation: square

Solution
4.2(252 votes)

Answer

Number of electrons: 2 ### Side of equation: Products Explanation 1. Determine oxidation states Ti^{2+} has an oxidation state of +2. In TiO_2, titanium has an oxidation state of +4. 2. Calculate change in oxidation state The change in oxidation state for titanium is from +2 to +4, which is an increase of 2. 3. Balance electrons To balance the increase in oxidation state, add 2 electrons to the products side.

Explanation

1. Determine oxidation states<br /> $Ti^{2+}$ has an oxidation state of +2. In $TiO_2$, titanium has an oxidation state of +4.<br /><br />2. Calculate change in oxidation state<br /> The change in oxidation state for titanium is from +2 to +4, which is an increase of 2.<br /><br />3. Balance electrons<br /> To balance the increase in oxidation state, add 2 electrons to the products side.
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