- Distinguish between pure substance and mixtures:
- A pure substance has a definite set of characteristic properties (density, mp, bp), whereas a mixture exhibits properties that are a mixture of the properties of the substance they contain.
- A pure substance is composed of one kind of particle, whereas mixtures contain more than one kind of particle.
- Describe how one could use differences in characteristic properties to separate the components of a mixture.
- Sketch particle diagrams that distinguish compounds, elements and mixtures.
- Distinguish elements from compounds in terms of differences in their properties.
- Cite the evidence that supports the belief that some pure substances are “compounded” of simpler particles in a definite ratio.
- Cite evidence for Avogadro’s Hypothesis. Use this with evidence from combining volumes to deduce the formulas of some compounds.
- State features of Dalton’s model of the atom; use composition by mass data to account for the laws of definite and multiple proportions.
The Ring of Truth:
Gases & How They Combine
Option 1 Classifying Matter
Option 2 Classifying Matter
Homogeneous vs. Heterogeneous Mixtures
Mixtures & Compounds
Separating the Seemingly Inseparable
Fractional Distillation of Crude Oil
The Periodic Table
Dalton’s Atomic Theory