General chemistry

General chemistry

Contributors in General chemistry

General chemistry

Concentration of a substance in a mixture measured as moles of the substance per mole of mixture. For example, the mole fraction of oxygen in air is about 0.21, which means that 1 mol of air contains ...

neutral

Chemistry; General chemistry

1. having no net electrical charge. Atoms are electrically neutral; ions are not. 2. A solution containing equal concentrations of H+ and OH-.

neutron

Chemistry; General chemistry

A particle found in the nucleus of an atom and is almost identical in mass to a proton, but carries no electric charge.

force

Chemistry; General chemistry

An entity that when applied to a mass causes it to accelerate. Sir Isaac Newton's Second Law of Motion states: the magnitude of a force=mass*acceleration.

free electron

Chemistry; General chemistry

Electron which is not attached to a nucleus.

frequency

Chemistry; General chemistry

Number of events in a given unit of time. When describing a moving wave, means the number of peaks which would pass a stationary point in a given amount of time.