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Chemistry 1061-Lutz
Flash Cards for Chemistry 1061 at ARCC Professor Lutz
50
Chemistry
Undergraduate 1
09/13/2012

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Term
Hypothesis
Definition
A Tentative interpretation or explanation for an observation
Term
Scientific Law
Definition
a brief statement that summarizes past observations and predicts future ones.
Term
Theory
Definition
a General explanation for the manifestation and behavior of all nature
Term
Molecules
Definition
Atoms that are bound together in specific geometric arrangements.
Term
Law of conservation of mass
Definition
In a chemical reaction , matter is neither created or destroyed.
Term
Matter
Definition
Anything that occupies space and has mass
Term
Crystalline
Definition
Solid which atoms or molecules are arranged in patterns, with long-range, repeating order
Term
Amorphous
Definition
a solid which atoms or molecules do not have any long-range order.
Term
Pure substance
Definition
substance composed of only a single type of atom or molecule.
Term
Mixture
Definition
a substance composed of 2 or more different types of atoms or molecules that can be combined in continuously variable proportions.
Term
Element
Definition
A substance that cannot be chemically broken down into simpler substances.
Term
Compound
Definition
a substance composed of two or more elements in fixed, definite proportions
Term
Heterogeneous mixture
Definition
A mixture in which the composition varies from one region to another.
Term
Homogeneous Mixture
Definition
A mixture with the same composition throughout.
Term
Physical Changes
Definition
Changes that alter only state or appearance but not composition
Term
Chemical Changes
Definition
Changes that alter the composition of matter.
Term
Physical Property
Definition
A property that a substance displays without changing its composition
Term
Chemical Property
Definition
A property that a substance displays only by changing its composition via a chemical change.
Term
Energy
Definition
The capacity to do work
Term
Kinetic Energy
Definition
the energy associated with its motion
Term
Potential Energy
Definition
The energy associated with its position or composition
Term
Thermal Energy
Definition
The energy associated with the temperature of an object.
Term
Formula for converting degrees °C to °F
Definition
°C=(°F-32)/1.8
Term
Formula for converting °C to K
Definition
K=°C+273.15
Term
1 mL = X^3 What is X
Definition
cm^3
Term
What is the Density formula
Definition
D=M/V
Term
Intensive property
Definition
A property of a substance that is independent of the amount of the substance. ie density
Term
Extensive Property
Definition
A property of a substance that is dependent on the amount of the substance. ie Mass
Term
Accuracy
Definition
How close the measured value is close to the actual value.
Term
Precision
Definition
How close a series of measurements are to one another or how reproducible they are.
Term
Random Error
Definition
Error that that has an equal probability of being to high or to low
Term
Systematic Error
Definition
Error that can be predicted to high or to low. May be precise but innacurate.
Term
Dimensional Analysis
Definition
Using Units to solve problems
Term
Acetate
Definition
C2H3O2-
Term
Dichromate
Definition
Cr2O7^2-
Term
Ammonium
Definition
HG4+
Term
Bicarbonate
Definition
HCO3-
Term
Hydroxide
Definition
OH-
Term
Carbonate
Definition
CO3^2-
Term
Nitrate
Definition
NO3-
Term
Chlorate
Definition
ClO3-
Term
Oxalate
Definition
C2O4^2-
Term
Chromate
Definition
CrO4^2-
Term
Phosphate
Definition
PO4^3-
Term
Cyanide
Definition
CN-
Term
Sulfate
Definition
SO4^2-
Term
H
Definition
Hydrogen
Term
Li
Definition
Lithium
Term
Na
Definition
Sodium
Term
Mg
Definition
Magnesium
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