Assume That You Are Looking at a REA Diagram That

question 19

Multiple Choice

Assume that you are looking at a REA diagram that depicts only one event.Which of the following must be on the REA diagram?

• A) an external agent
• B) an internal agent
• C) both A and B
• D) neither A nor B

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Definitions:

AgCl

Silver chloride, a white crystalline solid that is photosensitive and less soluble in water.

Spectator Ions

Ions that are present in a chemical reaction but do not participate in it, remaining unchanged throughout the reaction.

Potassium Iodide

A chemical compound used in medical treatments, nutritional supplements, and as a protective measure against radioiodine exposure.

Total Ionic Equation

An equation that shows all of the ions in a solution as they realistically exist, used in the study of reactions in aqueous solutions.