QuestionClassify these as pure substances or mixtures: 1. baking soda (NaHCO₃), 2. blueberry muffin, 3. ice (H₂O), 4. zinc (Zn), 5. Trimix (O₂, N₂, He).

Studdy Solution
Classify Trimix. Trimix is a mixture of oxygen, nitrogen, and helium. Each of these gases retains its own properties in the mixture. Therefore, Trimix is a mixture.
In conclusion1. Baking soda is a pure substance.
2. A blueberry muffin is a mixture.
3. Ice is a pure substance.
4. Zine cannot be definitively classified without further information.
5. Trimix is a mixture.