Answer:
ZINC(zn) is used as the coating layer for the iron and as well as for all ferrous materials in galvanization/galvanizing process which defined as given below.
Explanation:
<span>The answer: c) Li⁺ and NO₃⁻
Firstly, we have to show molecular equation (all compounds are showed as neutral molecules) for the reaction:
Li₂S(aq) + Cu(NO₃)₂(aq) ⇒ CuS(s) + 2LiNO₃(aq)
Then, the reaction has to be written as an ionic equation:
2Li⁺(aq) + S²⁻(aq) + Cu²⁺(aq) + 2NO₃⁻(aq) → CuS(s) + 2Li⁺(aq) + 2NO₃⁻(aq)
Soluble ionic compounds Li₂S and Cu(NO₃)₂ are shown as dissociated ions. As you can see on both side of the equation we have Li⁺ and NO₃⁻ ions. They do not participate in the reaction, and they are called spectator ions. All the above is an ionic equation.
Finally, when we cancel out spectator ions, it remains just ions and molecules involved in the reaction and we get the net<span> ionic equation:
</span>
S²⁻(aq) + Cu²⁺(aq) → CuS(s)</span>
According to arrhenius concept hno3 when dissolved in water it would act as a amphoterism al(no3)3.