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Chemistry Lab Final Exam
Terms in this set (61)
Definition of precision
how close together the experimental result values are to each other
Definition of accuracy
how close the values or average of the values is to the true value
Define physical properties
properties of a substance that deal with mainly the state of matter, mass, volume, color, electricity conductivity, density, and melting and boiling points
Define chemical properties
Chemical properties are properties that deal with the chemical makeup of a compound, or solution, etc. Usually it deals with reactivity, stability, oxidation levels, flammability, etc.
Are the following chemical or physical property observations?: blue, 30 grams, conducts electricity
Are the following chemical or physical properties?: gas produced, heat produced, new substance formed
A change in the makeup of a molecule is a...
A change in the appearance, or state of matter of a substance is a...
Is gas released a chemical or physical change observation?
Is the change of ice to water a chemical or physical change?
Energy is absorbed when an electron moves
Up (outward) an energy level
Energy is release when an electron mvoes
Down (inward) an energy level
The ground state is
Where an electron originated
How do you find an emission spectrum of an element
You what up the element, and put it in a spectrometer
What equation is used to find the concentration of a solution?
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