which of the following substance is a single compound？
A.graphite
B.vinegar
C.ehanol
D.petrol
plz explain why the answer is correct and why others are incorrect
single compound
2012-04-04 11:39 pm
回答 (1)
2012-04-05 12:05 am
✔ 最佳答案
The answer is : C. ethanolA. incorrect
Graphite is a form of carbon. Therefore,it is a single element, but NOT a compound.
B. incorrect
Vinegar is the mixture of water and ethanoic acid.
C.
Ethanol is a single compound, with structure CH3CH2OH.
D.
Petrol is a mixture of mainly hydrocarbons.
參考: andrew
收錄日期: 2021-04-13 18:36:22
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