Question
Classify each of the following as a homogeneous or heterogeneous mixture: soda water, wood, air. soil, vinegar, filtered tea.
Solution
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The following substances can be classified as homogeneous or heterogeneous mixtures:
- Soda water – Homogeneous
Soda water is a uniform mixture of water, carbon dioxide, and dissolved minerals, making it a homogeneous mixture. - Wood – Heterogeneous
Wood is made up of various components (fibers, cells, and minerals) and is not uniform throughout, making it a heterogeneous mixture. - Air – Homogeneous
Air is a mixture of gases (oxygen, nitrogen, carbon dioxide, etc.) that are evenly mixed and cannot be distinguished from one another, making it a homogeneous mixture. - Soil – Heterogeneous
Soil contains various particles (sand, clay, organic matter, etc.) that are not uniformly distributed, so it is a heterogeneous mixture. - Vinegar – Homogeneous
Vinegar is a uniform mixture of acetic acid and water, so it is a homogeneous mixture. - Filtered tea – Homogeneous
After filtration, the tea is a uniform liquid without any visible particles, making it a homogeneous mixture.
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