Astudent analyzed an unknown sample that contained a single anion. the sample gave a yellow precipitated upon addition of a solution of agno3 which did not dissolve in ammonia. which anion is present in the unknown solution? write the corresponding net ionic equation.

Anion present- Iodide ion (I⁻)

Net ionic equation- Ag⁺(aq) + I⁻(aq) → AgI(s)

In order to answer the question, we need to have an understanding of insoluble salts or precipitates formed by silver metal.

Additionally we need to know the color of the precipitates.

Some of insoluble salts of silver and their color include;

With that information we can identify the precipitate of silver formed and identify the anion present in the sample.

Ag⁺(aq) + I⁻(aq) → AgI(s)

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current