Notes
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THALES OF MILETUS- WATER
HERACLITUS- FIRE
EMPEDOCLES- 4 ELEMENTS
LAW OF CONSTANT PROPORTIONS
LEUCIPPUS,DEMOCRITUS- ATOMOS- UNCUTTABLE AND/OR ATOMS
iNTENSIVE OR INTRINSIC
-COLOR -PHYSICAL STATE
-MELTING
-TEMPERATURE
-MALLEABILITY
-DUCTILITY
-DIFFUSION
-BOILING POINT
-FREEZING POINT
EXTENSIVE OR EXTRINSIC
-SIZE
-MASS
-VOLUME
-DENSITY
-LENGHT
-WIDTH
CHEMICAL PROPERTIES
-BASTA LAHAT NG PROPERTIES, CHARACS, TRAITS NA MAOOBSERVE
KAPAG NAGREACT ANG ISANG SUBSTANCE SA ISA PA.
EXAMPLES,
1. FLAMMABILITY OF PAPER
2. RUSTING OF IRON
ETC.
CLASSIFICATIONS OF MATTER
1. PURE SUBSTANCE
-ELEMENT
-COMPOUND-two or more types of atom
2. MIXTURE- COMPOSED OF DIFFERENT PURE SUBSTANCES
-homogenous -uniform
-heterogenous- not uniform
WATER-PURE SUBSTANCE, compound
COPPER WIRE-PURE SUBSTANCE, element
MERCURY-PURE SUBSTANCE, element
SOFT DRINK-MIXTURE,
AIR-MIXTURE
IRON NAIL- PURE SUBSTANCE, ELEMENT
BAKING SODA- P.S., COMPOUND Na
SCIENTIFIC NOTATION
45,000= 4.5 x 10^4
3750= 3.75x10^3
580,000= 5.8x10^5
72,000,000=7.2x10^7
9,300,000,000= 9.3x10^9
1/100= 1x10^-2
1/1000=1x10^-3
0.0023= 2.3x10^-3
0.00076=7.6x10^-4
0.049=4.9x10^-2
0.000 00541= 5.41x10^-6
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