Unit 1 Flashcards
Atoms
Smallest building blocks of matter
Elements
Types of Atoms
Compounds/molecules
2 or more atoms bonded together
Mixtures
2 or more elements or compounds
Homogeneous Mixture
Can’t see parts (blood or lemonade)
Heterogeneous Mixture
Can see parts (salad)
Measuring Liquids
Volume Measured
Volume
Volume=space and measured in Liters (L)
Measuring Solids
Mass measured
Mass
Mass = stuff and measured in Grams (g)
Distance
Distance = length (M)
Time
Time = Seconds (S)
Temperature
Temperature = Kelvin (K)
Freezing point is 0 and boiling point is 100
Kelvin
K=C+273
Sig Figs
helps show precision in rounding
Math Rules of Sig Figs
Adding/Subtracting - least decimal places
Multiplying/Dividing - least sig figs
SI Prefixes
KHDbdcm
Kilo, Hecto, Deca, base (m,g,l), deci, centi, and mili
T-Tables
- Start with what you have
- End with what you need
- Use conversion factors to cancel units
- Solve by (all of the multipliers/all of the bottom)
