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24 Cards in this Set

  • Front
  • Back
Matter:
Has mass and takes up space
Mass:
the account of a substance
weight:
gravitational attraction
Inertia:
anythingthat has mass has it...resistance to change in motion. more mass= more inertia
Law of conservation of mass
you can not create or destroy mass
energy:
the ability to cause change or do work
Law of Conservation of Energy
energy can not be created or destroyed
Chemical energy
potential energy (ex: food being stored)
Motion energy
Kinetic energy (energy of motion, such as a runner running)
Elastic potential
ex: a rubber band bended back
Gravitational NRG
above the ground
States of matter
solid: defined shape, definate volume LOW ENERGY MATTER
liquid: no definate shape, definate volume
Gas: No definate shape, no volume
Plasma: No definate shape, no volume. HIGH EVERGY MATTER
Physical Property
doesnt change the chemical makeup (example: chopping wood)
Chemical property
changes the makeup. (ex: burning wood)
Indications of a chemical reaction
1) production of heat or light
2) Production of gas
3) Formation of a solid or precipitate
Exothermic:
releases energy
Endothermic:
absorbs energy
2 major types of matter
mixtures and pure substances
two types of mixtures
homogeneous: uniform, such as sugar , salt water, or cheerios
heterogenous: not uniform, such as salad or soup
two types of pure substances
1) Elements
2) Compounds: mixtures of the elements
from C>K
K=C+273
from C>K
C=K-273
from F>C
C=(5/9)(F-32)
from C>F
F=C(9/5)+32