Multiple Choice
Which of the following is the correct net ionic equation for the reaction between aqueous solutions of Na3PO4 and CuSO4?
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6. Chemical Quantities & Aqueous Reactions
Complete Ionic Equations
Multiple Choice
In the context of complete ionic equations, which of the following best describes spectator ions?
A
Ions that do not participate in the chemical reaction and remain unchanged in solution.
B
Ions that are involved in the formation of a gas or water.
C
Ions that form a precipitate during the reaction.
D
Ions that are produced only as a result of the reaction.
Verified step by step guidance1
Step 1: Understand what a complete ionic equation represents. It shows all the ions present in a solution, including those that participate in the reaction and those that do not.
Step 2: Identify the ions that undergo a chemical change during the reaction, such as forming a precipitate, gas, or water. These ions are called 'reactive ions' or 'participating ions.'
Step 3: Recognize that spectator ions are ions present in the solution that do not change their oxidation state or form new compounds; they remain dissolved and unchanged on both sides of the equation.
Step 4: Compare the options given: ions involved in gas or water formation, ions forming precipitates, and ions produced only as a result of the reaction are all participating ions, not spectators.
Step 5: Conclude that spectator ions are best described as ions that do not participate in the chemical reaction and remain unchanged in solution.
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