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Chapter 6 Section 1. Solutions and Other Mixtures. Any sample of matter is either a pure substance or a mixture. Heterogeneous Mixture. Heterogeneous Mixture: mixture that is not the same throughout Example: fruit salad
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Chapter 6 Section 1 Solutions and Other Mixtures
Any sample of matter is either a pure substance or a mixture
Heterogeneous Mixture • Heterogeneous Mixture: mixture that is not the same throughout • Example: fruit salad • Suspension: mixture that looks uniform when stirred or shaken but separates into different layers when left alone. • Example: orange juice
Colloid: mixture of tiny particles that are dispersed in another substance but do not settle out of the substance • Examples: egg white, paint, blood • There are 2 differences between particles in colloids and those in susensions: • Particles in colloids are much smaller than those in suspensions • Particles in colloids do not settle to the bottom b/c their particle size is so small
Immiscible Liquids: two or more liquids, solids, or gases, that don’t mix • To separate immiscible liquids you can: • Pour the less dense liquid off the top • Use a special container to get the dense liquid off the bottom • Emulsion: mixture of immiscible liquids in which liquids are spread throughout one another. • Example: mayonnaise
Homogeneous Mixture • Homogeneous mixture: mixture that is uniform throughout • Example: salt water (salt water can be separated by evaporation or boiling away the water.)
Solution: a homogeneous mixture of 2 or more substances uniformly spread throughout a single phase.
Solute: the substance that dissolves in a solution. • Example: aquarium salt • Solvent: the substance that dissolves the solute. • Example: water (universal solvent) • Miscible Liquids: 2 or more liquids that form a single layer when mixed. • You can separate miscible liquids by a process called distillation