Question

What are the spectator ions in the reaction between mg(oh)2 (aq) and hcl (aq)?

Answer 1

The spectator ions in the reaction between aqueous $Mg(OH)_2$ and aqueous HCl would be   $Mg^{2+$ and $Cl^-$ ions.

What are spectator ions?

Spectator ions are anions or cations that exist both as reactants and as products in a reaction. Their forms remain unchanged both in the reactants and in the products.

Aqueous $Mg(OH)_2$ and aqueous HCl  react according to the following equation:

$Mg (OH)_2 (aq) + 2HCl (aq) --- > MgCl_2 (aq) +2 H_2O (l)$

Before the reaction, $Mg^{2+$ and $Cl^-$ existed in the reactants as $Mg(OH)_2$ and HCl respectively. After the reaction,  $Mg^{2+$ and $Cl^-$ exist as $MgCl_2$ in the product.

Thus, the spectator ions in this case are  $Mg^{2+$ and $Cl^-$ ions because their forms did not change after the reaction.

More on spectator ions can be found here: brainly.com/question/28913274

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