Electrochemistry Question
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Which statement explains why zinc and copper are poorer choices to make engagement rings than gold is?
- Zinc is less active than copper is, while copper is less active than gold is.
- Zinc is less active than gold is, while gold is less active than copper is.
- Gold is more active than both zinc and copper are, so it will oxidize (rust) more easily.
- Both zinc and copper are more active than gold is, so both will oxidize (rust) more easily.