Unit 4 - Describing Substances
Unit 4 Documents
1. Distinguish between pure substances and mixtures
how one could use differences in characteristic properties to separate the components of a mixture.
Sketch particle diagrams that distinguish compounds, elements, and mixtures.
elements from compounds in terms of differences in their properties.
5. Cite the evidence
that supports the belief that some pure substances are "compounded" of simpler particles in a definite ratio.
6. Cite evidence for Avogadro's Hypothesis. Use this with evidence from combining volumes to deduce the
formulas of some compounds.
7. State features fo Dalton's model of the atom. Use composition
by mass data to account for the laws of definite and multiple proportions.
Unit 4 Key Terms
Unit 4 WS 1
Video: Ring of Truth Atoms Water Ratio
Video: Gases and How They Combine
Unit 4 WS 2
Dalton's Playhouse Lab Sheet