Chem 120 JMU Wilson Test 1 Questions With Complete Solutions

Fahrenheit - 1.8(C) + 32 Celsius - (F-32)/1.8 Physical property - properties can be observed without changing the identity of the substance under observation Chemical property - properties can only be observed during a change int he identity of the substance under observation examples of chemical properties - corrosive, combustible, mutagenic, teratogenic, explosive examples of physical properties - size, malleability, ductility, conductivity, density, state of matter Homogenous mixture - a mixture in which the composition is uniform throughout Heterogenous mixture - A mixture with uneven distribution of different substances, solids, liquids, gases. Nuclear energy - when nucleus of atoms breakdown Heat energy - Only kinetic; speed molecules move Light/ radiant energy - "microwaves" Chemical energy - stored in chemical bonds Mechanical energy - motion- "letting something roll" Electrical energy - electrons moving through wires Kinetic energy - energy produced form motion, energy that is being used Potential energy - Energy that a motionless object has because of its position or composition; available to be used Specific heat - amount of energy reused to raise the temperature of 1 gram of a substance 1 degree celsius Specific heat formula - q=mc∆T Specific heat of water - 4.184 J/gC