QQuestionChemistry
QuestionChemistry
Is salad (lettuce, tomato, and onion) a pure substance or a mixture?
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Answer
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Step 1I'll solve this problem step by step:
Step 2: Understand the Definitions
- A pure substance is a material that has a constant composition and uniform properties throughout - A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means
Final Answer
Salad is a mixture, not a pure substance, because it contains multiple different types of ingredients that can be physically separated and do not have a uniform composition.
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