8. Identify the solutions among the following mixtures.(a) Soil (b) Seawater (c) Air (d) Coal (e) Soda water.
Which of the following materials fall in the category of a “pure substance”?
5. Classify each of the following as a homogeneous or heterogeneous mixture. soda water, wood, air, soil, vinegar, filtered tea.
Confirm that a colourless liquid given to you is pure water.