How do i wrtie the complete balance equation for this situation:
A magnesium coil is dropped in perchloric acid solution.(molecular and ionic equations)?
To write the complete balanced equation for this situation, we need to understand the reaction between magnesium (Mg) and perchloric acid (HClO4).
First, let's write the molecular equation, which shows the reactants and products in their molecular form:
Mg (s) + HClO4 (aq) → Mg(ClO4)2 (aq) + H2 (g)
In this equation, Mg is the magnesium coil that is being reacted with HClO4, resulting in the formation of magnesium perchlorate (Mg(ClO4)2) and hydrogen gas (H2).
Next, let's write the ionic equation, which shows the dissociation of the reactants and products into their ions:
Mg (s) + 2 H+ (aq) + 2 ClO4- (aq) → Mg2+ (aq) + 2 ClO4- (aq) + H2 (g)
In the ionic equation, we represent the dissociated forms of the reactants and products. Mg (s) represents the solid magnesium coil, which dissociates into Mg2+ ions (aq). Similarly, HClO4 dissociates into H+ ions (aq) and ClO4- ions (aq). The product Mg(ClO4)2 also dissociates into Mg2+ ions (aq) and ClO4- ions (aq).
It's important to note that the ClO4- ions appear on both sides of the equation as a spectator ion — they do not participate in the reaction but are present due to the dissociation of HClO4 and Mg(ClO4)2.
Therefore, the complete balanced equation for the reaction between a magnesium coil (Mg) and perchloric acid (HClO4) can be written as:
Mg (s) + 2 HClO4 (aq) → Mg(ClO4)2 (aq) + H2 (g)