Question

Which of these are spectator ions in the chemical reaction shown below?
(2 Points)
2NaOH(aq) + CuCl2(aq) + 2NaCl(aq) + Cu(OH)2 (s)
Oci (aq)
OH(aq)
O Na+ (aq)
O Cu2+ (aq)

Answer 1

This problem is providing us with a reaction between sodium hydroxide and copper (II) chloride, so the spectator ions are required. At the end, these turn out to be Na⁺ and Cl⁻.

Types of chemical equations

In chemistry, a significantly great number of chemical reactions involve the exchange of ions for them to occur. Thus, one can have three versions of a chemical reaction; the complete equation, complete ionic equation and net ionic equation.

In such a way, to exemplify this, the complete equation for the given reaction is just:

$2NaOH(aq) + CuCl_2(aq) \rightarrow 2NaCl(aq) + Cu(OH)_2 (s)$

Which of course, must be balanced. Next, for the complete ionic equation, one must separate the aqueous species into ions:

$2Na^+(aq)+2OH(aq) + Cu^{2+}(aq)+2Cl^-(aq) \rightarrow 2Na^+(aq)+Cl^-(aq) + Cu(OH)_2 (s)$

Where the copper (II) hydroxide is clearly nonionizing as it remains as a precipitate (solid).

Finally, the net ionic equation omits the spectator ions, which are basically ions that appear on both reactants and products side, in this case both Na⁺ and Cl⁻:

$2OH^-(aq) + Cu^{2+}(aq)\rightarrow Cu(OH)_2 (s)$

Learn more about spectator ions: https://brainly.com/question/15365313