QQuestionChemistry
QuestionChemistry
Question 9 of 10
Which of the following best describes spectator ions?
A. Ions that are made of a single element
B. Ions that combine to form a precipitate
C. Ions made when compounds dissolve in water
D. Ions that do not participate in the reaction
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understanding Spectator Ions
Spectator ions are ions present in a solution that do not actively participate in a chemical reaction. They remain unchanged and do not take part in the chemical transformation.
Step 3:: Analyzing the Definition
- These ions are typically found in aqueous solutions - They are present in the solution but do not undergo any chemical changes - They do not form new compounds or participate in the reaction mechanism
Step 4:: Examining the Answer Choices
A. Ions that are made of a single element - This is not the correct definition of spectator ions B. Ions that combine to form a precipitate - This describes reactive ions, not spectator ions C. Ions made when compounds dissolve in water - This describes the formation of ions, but not their role in a reaction D. Ions that do not participate in the reaction - This precisely describes spectator ions
Step 5:: Providing an Example
In a reaction like $$AgNO_{3(aq)} + NaCl_{(aq)} \rightarrow AgCl_{(s)} + NaNO_{3(aq)}
- Na^{+} and NO_{3}^{-} are spectator ions - They are present in the solution but do not react
Final Answer
Ions that do not participate in the reaction
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