Which term describes substances that contain carbon?

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

Which term describes substances that contain carbon?

Explanation:
This question hinges on how we classify substances by carbon content. Substances that contain carbon, especially when bonded to hydrogen, are called organic compounds. This category includes most materials associated with living things as well as many common environmental substances like fuels and biological molecules. Water and minerals don’t have carbon–hydrogen bonds, so they’re considered inorganic. There are a few carbon-containing substances that are grouped as inorganic in some contexts (like carbonates or carbon dioxide), but at the basic level taught here, the label for carbon-containing compounds is organic.

This question hinges on how we classify substances by carbon content. Substances that contain carbon, especially when bonded to hydrogen, are called organic compounds. This category includes most materials associated with living things as well as many common environmental substances like fuels and biological molecules. Water and minerals don’t have carbon–hydrogen bonds, so they’re considered inorganic. There are a few carbon-containing substances that are grouped as inorganic in some contexts (like carbonates or carbon dioxide), but at the basic level taught here, the label for carbon-containing compounds is organic.

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