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G11 1st sem
G11 2ND SEM
chemistry
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Cards (29)
Energy determines the state
extensive property
one that Does depend on the amount of the substance present.
Intensive property
One that DOES NOT depend on the amount of the Subtance present.
Boiling point
/
condensation point
the exact temperature at which liquid becomes a gas or gas to liquid.
Melting Point
/
freezing point
the exact temperature at which a solid beccomes a liquid or a liquid become a Solid.
State (phase) of matter
solid,
liquid
,
gas
Plasma
Malleability
Ability of a subtance tobe hammered flat and to retain
Ductility
Ability of a substance to be stretched into a wire
luster
the way that a substance reflects light (metalic non-metallic, glassy. pearly, dull).
highest density element
Osmium
23
g/cm3
Lovest density Element
Hydrogen
0.0009g/cm3
Density
the ratio of mass to volume reflects the degree of packing of particles in matter.
Volume
The amount of space an space object occupies (in ml, L, cm³,m etc)
Mass
the amount of matter in an object (in g or kg).
Temperature
A measure of the average kinetic energy (energy of motion) of of particles subtance
Texture
how the substance looks and feels.
color
how the object absorbs and reflects light
Physical property
A trait of matter that can be observed or measured without changing the chemical composting of the matter.
Changing states
•
state
change
•
phase
change
•
Physical
change
Add
or
subtract Energy
-when evergy is added, particles move faster
-When energy is taken away, particles move slower?
Particles
in
Plasma
• Are electrically charged
• Have extremely high energy levels.
Plasma
• lightning is a plasma
• Used in fluorescent light bulbs and Neon lights
• Plasma is a lot like a gas, but the particles are dectically charged
Gasses
• Gasses spread out to fill the entire
• space given and do not have definite volume
• Gasses have mass
• Gasses take up space
Particles in liquids
• Are loosely packed
• Have medium energy levels
• particles flow around each other
liquids
• liquids take the shape of their container and have definite volume • liquids have mass
• liquids take up space.
Particles
in
Solids
• Are packed tigthly together.
• Have verry little energy.
• vibrate in place
Solids
• Solids have definite shape and definite Volume
• Solids have mass.
• Solids take up spaces.
Matter
is anything that has mass and takes up space
particles
in
gases
move freely, have lots of energy