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For Extraction of metals and reduction, which acid-base focus answer best supports this Unit 4.4 objective: Explain that unreactive metals such as gold are found in the Earth as the metal itself?.
- A.They do not react with oxygen. - correct acid-base focus for that
- B.Wrong acid-base focus: confuses that with a nearby Unit 4.4 chemical change idea
- C.Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for Extraction of metals and reduction
- D.Wrong reaction link: does not support Explain that unreactive metals such as gold are found in the Earth as the metal itself
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