2 years ago

Which of the following is NOT a compound? Table salt Carbon dioxide Water Gold

Chemistry

2 answers:

777dan777 [17]2 years ago

5 0

Gold is not a compound

Igoryamba2 years ago

3 0

Answer: Gold.

Explanation: Water, CO2, and table salt are compounds. They are composed of two or more separate elements; a mixture, where as gold is neither.

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tekilochka [14]

When E° cell is an electrochemical cell which comprises of two half cells.

So,

when we have the balanced equation of this half cell :

Al3+(aq) + 3e- → Al(s) and E°1 = -1.66 V

and we have also this balanced equation of this half cell :

Ag+(aq) + e- → Ag(s) and E°2 = 0.8 V

so, we can get E° in Al(s) + 3Ag (aq) → Al3+(aq) + 3Ag(s)

when E° = E°2 - E°1

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weqwewe [10]

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