Solver: Writing Reactions & Net Ionic Eqns

[inconceivable]

1. 12.53 mL of a 1.74 M solution of AgNO₃ are mixed with 1.43 mL of a 9.63 M solution of MgI₂. Write equations for the reaction, ionic and net ionic.


2. Usually they give the products of the reaction but in this case we have to figure out what is produced. Where do I start?

Thx

 

[Borek]

With solubility rules. There is an obvious combination of ions present in the solution that gives insoluble salt.

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[Blueshift5]

for reaching out! I can provide you with the necessary information to solve this problem. First, we need to understand what is happening in this reaction. AgNO3 and MgI2 are both ionic compounds, which means they are made up of ions. When these two solutions are mixed together, a double displacement reaction will occur. This means that the ions in the two compounds will switch partners, resulting in the formation of new compounds.

To write the balanced equation for this reaction, we need to first identify the ions present in each compound. AgNO3 contains Ag+ and NO3- ions, while MgI2 contains Mg2+ and I- ions. When we mix these two solutions, the Ag+ ion will combine with the I- ion to form AgI, and the Mg2+ ion will combine with the NO3- ion to form Mg(NO3)2. The balanced equation for this reaction is:

AgNO3 + MgI2 → AgI + Mg(NO3)2

Now, to write the ionic equation, we need to separate all the ions that are present in the reaction. This will give us a better understanding of the individual components involved. The ionic equation for this reaction is:

Ag+ + NO3- + Mg2+ + 2I- → AgI + Mg(NO3)2

Finally, to write the net ionic equation, we need to cancel out any ions that appear on both sides of the equation. In this case, the NO3- and Mg2+ ions appear on both sides, so they can be cancelled out. The net ionic equation is:

Ag+ + 2I- → AgI

This is the simplified form of the reaction, showing only the ions that are directly involved in the formation of the product.

In regards to your second question, to determine the products of a reaction, we need to first identify the reactants and their chemical formulas. Then, we can use our knowledge of chemical reactions and their properties to predict the products. In this case, we know that double displacement reactions result in the formation of a precipitate, which is an insoluble solid. Therefore, we can predict that AgI will be the precipitate formed in this reaction.

I hope this explanation helps you understand the process of writing reactions and net ionic equations. Let me know if you have any further questions. Happy solving!