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Ch.1 - Introduction: Matter, Energy, and Measurement
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All textbooksBrown 14th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblem 14a

Chapter 1, Problem 14a

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (a) milk

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Hi everyone today, we have a question asking us to select all peer substances. Pure substances cannot be separated by physical means. So let's look at our options here. Oxygen gas, oxygen gas cannot be broken down by physical means. So it is a pure substance, mineral water has water mixed with different minerals and it can be broken down an aluminum sheet. We cannot break that down by physical means. So it is a pure substance. Diesel has other components in it. It is not a pure substance, soda has other components in it. It is not a pure substance, baking soda. We can't break that down by physical means. It is a pure substance. So our answer is a 13 and six. Thank you for watching. Bye.
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