객관식
If calcium ions, each of which has a charge of 2+, are present in a solution, what is the chemical symbol for a calcium ion?
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2. Atoms & Elements
Ions
Multiple Choice
In an aqueous solution during electrolysis, cations are attracted toward which electrode?
A
Either electrode equally because they are neutralized by water
B
The cathode (negative electrode)
C
The anode (positive electrode)
D
The salt bridge because it contains counterions
검증된 단계별 안내1
Recall that during electrolysis, electrodes are charged: the cathode is negatively charged, and the anode is positively charged.
Understand that cations are positively charged ions, so they are attracted to the electrode with the opposite charge.
Since opposite charges attract, cations will move toward the cathode, which is negatively charged.
Anions, which are negatively charged ions, move toward the anode, the positively charged electrode.
Therefore, in an aqueous solution during electrolysis, cations are attracted toward the cathode (negative electrode).
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