Chemistry Definitions
Particle theory
-all matter is composed of tiny objects called particles
-have spaces between them
-always in motion
-particles in substance attract each other
Two positively charged objects approach each other
Repulsion
What is the 7th planet from the sun?
Uranus
What is the top surface of the ground called?
Topsoil
SO2
Sulfur Dioxide
Suspension
a cloudy mixture in which tiny particles of one substance are held within another
Electrolyte
Liquid or paste that conducts electricity
When a star explodes it is called
Supernova
What type of soil holds the most water?
Clay
F2
Fluorine Gas
Name all chemical families in order
-Alkali Metals
-Alkaline Earth Metals
-Halogens
-Noble Gases
Current in circuit is measured using
Ammeter
Device used to produce light spectra
Spectroscope
What is an aquifer?
A collection of water, usually underground
BaS
Barium Sulphide
Valence Electrons
electrons in the outermost shell
What is resistance?
The degree to which a substance opposes the flow of electric current
What is Nuclear Fusion?
the process in which the nuclei of atoms fuse together and form larger atoms
Algae can absorb tiny amounts of mercury form the water. What is it called when it moves up the food chain?
Biomagnification
N2O3
Dinitrogen Trioxide
A non-metal, and a yellow green gas at room temperature
Chlorine
A circuit in which the components are arranged one after the other
Series Circuit
6 layers of the sun
-Core, Radiative Zone, Convective zone, Photosphere, Chromosphere, Corona, Solar Flames, Sunspots
List three limiting factors that would prevent overpopulation of Didinium and Paramecium
Competition, disease, predators
CH4
Methane