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Chemistry 2/8

Scientific theory collect the facts or data formulate a hypothesis plan and do addition experiments to test the hypothesis modify the hypothesis
Theory A well established hypothesis
What do theories and hypothesis explain? natural phenomena
What are scientific laws? simple statements of natural phenomena to which no exceptions are known under the given conditions
Hypothesis A tentative explanation of certain facts that provided a basis for further experimentation
Qualitative physical characteristics
Quantitative based on measurements
solid definite shape and volume
amorphous solids do not have a regular, internal, geometric pattern
liquid definite volume but not definite shape
gas indefinite volume and no fixed shape
metals solids at room temperature high luster good conductors of hear and electricity malleable ductile
nonmetals not lustrous low melting points and densities poor conductors of heat and electricity
metalloids have properties that are intermediate between metals and nonmetals
cation positively charged ion
anion negatively charged ion
denser liquids drain out ___ first
Created by: Ljg1237