Mixtures can be characterized by being separable by mechanical means eg heat, filtration, gravitational sorting, centrifugation etc Mixtures can be either homogeneous or heterogeneous' a mixture in which constituents are distributed uniformly is called homogeneous, such as salt in water, otherwise it is called heterogeneous, such as sand in water 8)A solution is a homogeneous mixture of two or more components with a smaller size than 1 nm Homogeneous mixtures have only one phase Homogeneous mixtures – Seawater, air and soda water Heterogeneous mixtures – Coal and Soil 9) (b) milk and (d) starch solution show Tyndall effect because they are colloidal solution The air in the atmosphere consists of nitrogen, oxygen, which is the lifesustaining substance for animals and humans, carbon dioxide, water vapor, and small amounts of other elements (argon, neon, etc) Higher in the atmosphere air also contains ozone, helium, and hydrogen People can only clearly notice the presence of air when the wind blows
Elements Compounds Mixtures Objectives 1 Explain The Difference Between An Element And A Compound 2 Compare Heterogeneous And Homogeneous Mixtures Ppt Download
