Scelta multipla
Which of the following is an example of a nonelectrolyte?
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6. Chemical Quantities & Aqueous Reactions
Electrolytes
Scelta multipla
Which of the following electrolytes carries a positive charge?
A
SO_4^{2-}
B
Cl^-
C
K^+
D
Na^+
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Identify the charge on each electrolyte by examining their chemical formulas and charge notations.
For \(SO_4^{2-}\), recognize that the superscript \$2-$ indicates it carries a negative charge (an anion).
For $Cl^-$, note that the superscript $-$ also indicates a negative charge (an anion).
For $K^+$ and $Na^+$, observe that the superscript $+$ indicates a positive charge (cations).
Conclude that electrolytes with a positive charge are those with a $+$ superscript, such as $K^+$ and $Na^+$.
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