QQuestionChemistry
QuestionChemistry
Which of the following would conduct electricity when dissolved in water?
A. Fructose (polar covalent)
B. Bronze (metallic)
C. Calcium acetate (ionic)
D. Benzene (nonpolar covalent)
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Answer
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Step 1:
To determine whether a substance will conduct electricity when dissolved in water, we need to consider its bonding type and the resulting type of particles it forms when dissolved.
Step 2:
Fructose is an example of a polar covalent compound. When dissolved in water, the polar water molecules surround the fructose molecules, but since fructose molecules do not dissociate into ions, it will not conduct electricity.
Step 3:
Bronze is a metallic compound, which conducts electricity in its solid form due to the delocalized electrons in its metallic bonds. However, when bronze is dissolved in water, it forms a suspension, not a solution, and does not conduct electricity.
Step 4:
Calcium acetate is an ionic compound. When dissolved in water, it dissociates into calcium ions (Ca^(2 +)) and acetate ions (C^2H^3O2^-). These ions are free to move and conduct electricity, so calcium acetate will conduct electricity when dissolved in water.
Step 5:
Benzene is a nonpolar covalent compound. When dissolved in water, the nonpolar benzene molecules do not interact with the polar water molecules in a way that would cause the benzene molecules to dissociate into ions. Therefore, benzene will not conduct electricity when dissolved in water.
Final Answer
Calcium acetate (ionic) will conduct electricity when dissolved in water.
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