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Unit 1: Foundations of Chemistry, Matter, Measurements, Conversions -…
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Matter
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pure substance
element
cannot be broken down into smaller parts, pure substance
compound
mixtures of elements, can be broken down into smaller parts
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phase diagrams
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show boundaries between solid, liquid, gas states for a substance
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Conversions
dimensional analysis
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equation:
what you start with x (# chosen so that top = bottom / units you start with) = what you get in units you want
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tips and tricks
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when converting top & bottom units, start with top
when using ^2/^3 units, ^2/^3 conversion factors
SigFigs:
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rules:
addition/subtraction
final answer should have same # of sigfigs to the right of the decimal point as the least precise measurement
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