Definitions Flashcards
What is meant by the term inert?
Will not have an effect on the reaction by facilitating the movement of electrons.
Define temperature
The average amount of kinetic energy of particles inside a sample.
Define mass
The amount of matter in an object
Define melting point
The temperature at which a solid becomes a liquid at fixed pressure under the atmospheric conditions.
Define freezing point
The temperature at which a liquid becomes a solid under atmospheric conditions.
Define density
This is mass per unit volume
Define pressure
This is force per unit area
Define evaporation
The process in which a liquid changes into a gas
Define condensation
The process in which a gas changes into a liquid.
Define sublimation
The process where a solid becomes a gas without first becoming liquid.
Define deposition
The process in which a gas becomes a solid without first becoming a liquid.
Define Brownian motion
The random and totally erratic movement of gas/liquid particles by Robert Brown
Define diffusion.
The spontaneous moving, mixing and spreading of one substance through another substance from a high concentration to a low concentration until particles are evenly spread.
Define chemical change
A change in composition of reacting substances resulting in a new product being formed.
What does a subscript indicated?
The number of atoms of an element found in a formula
