Unit One Flashcards
(30 cards)
Fahrenheit
Body Temp: 98.6
Freezing: 32
Boiling: 212
Celsius
Body Temp: 37
Freezing: 0
Boiling: 100
Kelvin
Body Temp: 310
Freezing: 273
Boiling: 373
Converting Fahrenheit to Celsius
C=(F-32) /1.8
Converting Celsius to Fahrenheit
F= (c*1.8) + 32
Converting Celsius to Kelvin
K= C+273
Converting Kelvin to Celsius
C= K-273
Converting from Fahrenheit to Kelvin, vice versa
F to C to K
K to C to F
Density
M/V gmL
Determines whether something floats
Mass
Measure of total quantity of matter in an object (grams)
Volume
A measure of total space occupied (liters)
Pure Substance
Single matter. CAN NOT be separated by Physical means.
Element and Compound
Mixture
- Combination of two or more pure substances.
- Each retains its chemical identity.
- CAN be separated my Physical means.
- Composition varies
Homogeneous and Heterogeneous
Elements
- Pure Substance
- CAN NOT be broken. Down by any means
- 118 known elements
- Building Blocks of matter
Compounds
- Pure Substance
- CAN be broken by CHEMICAL means
- Combo of two or more elements
- have definite composition
Can be Ionic or Covalent
Homogeneous
- mixture
- one visible phase
- same properties throughout (uniform)
Heterogeneous
- mixture
- two or more visible phases
- different properties in different phases(not uniform)
Atom
-contains all properties of an element but is the smallest particle
Molecule
Combo of atoms working as a unit
Non Metals
- no luster
- poor conductivity
- good insulation
- brittle & nonmalleable
Halogens
Noble Gas
Metals
Most of the periodic table
- gray, silver luster
- ductile
- malleable
- electric and thermal conductivity
Alkai(1A)
Alkaline (2A)
Main Group Elements
Representative (metal and non metal)
Transition Elements
All located in d area
- all are metal
Inner transition
Located in f area
-all are metals
