Classify each of the following as a homogeneous or heterogeneous mixture. soda water, wood, air, soil, vinegar, filtered tea.

1. Soda Water:
– Homogeneous mixture.
– Uniform composition throughout.
– Combination of water and dissolved gases.

2. Vinegar:
– Homogeneous mixture.
– Displays uniform composition.
– Solution of acetic acid in water.

3. Air:
– Homogeneous mixture.
– Uniform blend of gases (mainly nitrogen and oxygen).
– Consistent composition throughout the atmosphere.

4. Wood:
– Heterogeneous mixture.
– Non-uniform appearance.
– Composed of cellulose, lignin, and other substances.

5. Soil:
– Heterogeneous mixture.
– Non-uniform due to varied components.
– Contains minerals, organic matter, water, and air pockets.

6. Filtered Tea:
– Homogeneous mixture.
– Solutes evenly dispersed in the liquid.
– Uniform composition in the filtered state.

7. Scale of Observation:
– Classification can depend on the scale of observation.
– Wood may appear homogeneous on a small scale but reveals heterogeneity at a larger scale.
– The distinction between homogeneous and heterogeneous mixtures is based on the uniformity or lack thereof in their compositions and appearances.