Multiple Choice
In the classification of matter, propane (C3H8) is best classified as which of the following?
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3. Matter and Energy
Classification of Matter
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Which of the following substances is an organic compound?
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Verified step by step guidance1
Understand the definition of an organic compound: Organic compounds primarily contain carbon atoms bonded to hydrogen atoms, often along with other elements such as oxygen, nitrogen, sulfur, etc.
Examine each given substance to identify the presence of carbon and hydrogen atoms bonded together:
1. \(H_2O\) (water) contains hydrogen and oxygen but no carbon, so it is inorganic.
2. \(N_2\) (nitrogen gas) contains only nitrogen atoms, no carbon or hydrogen, so it is inorganic.
3. \(Na_2SO_4\) (sodium sulfate) contains sodium, sulfur, and oxygen, but no carbon or hydrogen, so it is inorganic.
4. \(C_2H_6\) (ethane) contains carbon atoms bonded to hydrogen atoms, fitting the definition of an organic compound.
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