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Kelley Chem - SOL Re

Kelley Chem - SOL Rev 1

QuestionAnswer
Compare Potential Energy and Kinetic Energy Potential Energy = stored energy; Kinetic energy = energy of motion
Compare Precision and Accuracy Precision - reproducibility of a measurement; Accuracy - how close a measurement is to the accepted value
Chemical property a substance changes into a new substance, i.e., something burning in the presence of oxygen
Physical property properties of a substance that can be observed without changing the substance, i.e., color, odor, density, boiling or melting point
Physical change Only the state of the substance changes - it keeps it chemical properties, i.e., freezing, cutting, grinding
Chemical change New substance is formed that has different chemical and physical properties from the original substances
List 3 states of matter from most dense to least dense solid, liquid, gas
Density = mass/volume
Compound substance composed of two or more different elements which are chemically combined, i.e., NaCl
Mixture two or more substances that are physically combined and retain their own properties
Created by: hawks