Section 1
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State the Law fo Conservation of Energy?
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Last updated
6 years ago
Date created
Mar 1, 2020
Cards (57)
Section 1
(50 cards)
State the Law fo Conservation of Energy?
natural law describing the fact that energy is neither created nor destroyed in any process
mechanical energy
energy carried by the moving parts of a machine
homogeneous
consistent, not visibly different parts (seperated by chemical means (distillation, crystallization, and chromatography)
Law of Conservation of Matter
matter is neither created nor destroyed in any process
What is electrolysis? Describe how this process can be used to differentiate between an element and a compound.
to tear apart with electricity. Compounds can be seperated through this process but elements cannot.
work
is the capacity to move an object over a distance against a resisting force.
chemical energy
exists because of the arrangement of the particles that make up a substance. (gasoline)
burning
chemical change
elements
can not be separated into simpler substances by chemical means
kinetic
energy of motion
gravity
is responsible for converting for converting the potential energy of the water into kinetic energy, which is then able to do work
compounds
are two are more elements combined by chemical means/reaction
radio activity
chemical properties
matter
anything that has massand volume
What are the states of matter?
solid, liquid, gas, plasma
reacting
chemical change
What is absolute zero? What happens here?
Theoretically lowest temp. that can be reached. All molecular motion here stops.
tearing
physical changes
physical properties
things that can be observed without changing or altering the identity of the substance. (density, color,and melting point)
potential
energy of position, location; stored energy
decomposition
chemical changes
mixture
blend of two or more pure substances
evaporating
physical change
thermal energy
is a form of Kinetic energy caused by the random internal motion of particles of matter
heterogeneous
inconsistent throughout, visibly different parts ( can be seperated by physical means- filtration)
Radiant
sunlight
Elements and compounds are ________.
pure substances
volume
space the object occupies
stability
chemical properties
chromatography
when you have a solution, and depending on how the components respond to the paper, separates on the paper
distillation
a process used to separate dissolved solids from a liquid, which is boiled to produce a vapor that is then condensed into a liquid
joule
the SI unit of energy
density
physical properties
color
physical properties
flamability
chemical properties
mass
material in an object
melting point
physical properties
chemical properties
can only be observed by changing/alterning the substance
Energy
the capacity to do work or to produce heat.
What are the types fo energy?
Radiant, Kinetic, Potential
physical changes
changes in appearance, not identity
energy
capacity to do work or transfer heat
electrical energy
exists when objects with different electrical charges are separated
matter
is anything that has mass and volume
crushing
physical change
chemical changes
alters the identity, a new substance is formed.
energy
the capacity to do work or to produce heat
calorie
chemistry unit of energy
_______ and _______ are temperature scales of equal size.
kelvin , celsius
crystallization
a substance partially evaporated and crystals form
Section 2
(7 cards)