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## Compound * Substance * consists of 2 or more elements * chemically combined in a fixed ratio ### Organic compounds * Contain C & H * Associated with living organisms * Carbohydrates * Proteins * Lipids * Nucleic acids ### Inorganic compounds * Not contain C & H * Associated with non...

## Compound * Substance * consists of 2 or more elements * chemically combined in a fixed ratio ### Organic compounds * Contain C & H * Associated with living organisms * Carbohydrates * Proteins * Lipids * Nucleic acids ### Inorganic compounds * Not contain C & H * Associated with non-living organisms * Water