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Chemistry Final Review
Chemistry Final Review
94
Chemistry
8th Grade
05/31/2014

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Cards

Term
These are the main, building block substances of our universe
Definition
Element
Term
These are the tiniest particles of Elements
Definition
Atoms
Term
Two or more atoms together is a
Definition
Molecule
Term
A substance made up of two or more elements put together
Definition
Compound
Term
Scientists came up with these to describe atoms
Definition
Models
Term
What has been responsible for scientists changing their atomic models
Definition
Technology
Term
What is the current model of the atom called?
Definition
Electron Cloud Model
Term
The periodic table is arranged by increasing
Definition
Atomic Number
Term
These can be predicted by an element's location on the periodic table
Definition
An Element's Properties
Term
The atomic number represents the number of
Definition
Protons and Electrons
Term
The atomic mass represents the number of
Definition
Protons and Neutrons
Term
The group, or family number represents the number of
Definition
Valence Electrons
Term
The period number represents the number of
Definition
Orbitals
Term
The most stable elements on the periodic table: Group 18
Definition
Noble Gases
Term
Elements that share some properties with metals and some with nonmetals
Definition
Metalloids
Term
Column of elements in the periodic table with similar properties
Definition
Group/Family
Term
The most reactive metals on the periodic table: Group 1
Definition
Alkalai Metals
Term
Elements that are shiny, conduct heat and electricity, are malleable and ductle
Definition
Metals
Term
The largest group of elements on the Periodic Table: Groups 3-12
Definition
Transition Metals
Term
Elements that are usually a gas or britle, and don't conduct heat or electicity well
Definition
Non-Metals
Term
The part of an atom with positive charge
Definition
Proton
Term
The part of an atom with negative charge
Definition
Electron
Term
The part of an atom with no charge
Definition
Neutron
Term
The center of an atom
Definition
Nucleus
Term
The special name for electrons on the outer shell of an atom
Definition
Valence Electrons
Term
Krypton is in Group 18, it is a Noble Gas, how many Valence Electrons does it have?
Definition
8
Term
An atom that has gained or lost an electron is called an
Definition
Ion
Term
This group, Group 1, loses electrons easiest
Definition
Alkalai Metals
Term
This group, Group 17, gains electrons easiest
Definition
Halogens
Term
When an atom loses electrons, it becomes more
Definition
Positive
Term
When an atom gains electrons, it becomes more
Definition
Negative
Term
A positively charged ion is called a
Definition
Cation
Term
A negatively charged ion is called an
Definition
Anion
Term
A bond between Metals and Nonmetals is called
Definition
Ionic
Term
A bond between Nonmetals and Nonmetals is called
Definition
Covalent
Term
A bond between Metals and Metals is called
Definition
Metalic
Term
In an Ionic bond, Electrons are ______
Definition
Transferred
Term
In a Covalent bond, Electrons are ______
Definition
Shared
Term
A molecule with two of the same element is called
Definition
Diatomic
Term
C6H12O6 is the chemical formula for
Definition
Glucose
Term
The chemical formula for water is
Definition
H2O
Term
The chemical formula for table salt is
Definition
NaCl
Term
Is this physical or chemical: Flammability
Definition
Chemical
Term
Is this physical or chemical: Melting Point
Definition
Physical
Term
Is this physical or chemical: Color
Definition
Physical
Term
Is this physical or chemical: When bonds are broken
Definition
Chemical
Term
Is this physical or chemical: When no new substance is formed
Definition
Physical
Term
A chemical change that gives off energy is called
Definition
Exothermic
Term
A chemical change that absorbs energy is called
Definition
Endothermic
Term
A mixture that is not uniform in composition
Definition
Heterogenous Mixture
Term
A mixture that is uniform in composition
Definition
Homogenous Mixture
Term
Name the 5 physical techniques used to separate mixtures
Definition
Magnetism, Filtration, Dissolving, Evaporation, and Chromatography
Term
In a solution, the substance being dissolved
Definition
Solute
Term
In a solution, the substance doing the dissolving
Definition
Solvent
Term
In a solution, how able something is to be dissolved
Definition
Solubility
Term
A substance with a pH from 0-6.9
Definition
Acid
Term
A substance with a pH from 7.1-14
Definition
Base
Term
The capacity of a system to perform work
Definition
Energy
Term
The energy stored in a system
Definition
Potential Energy
Term
The energy posessed by a system due to motion
Definition
Kinetic Energy
Term
The energy stored in the chemical bonds of a system
Definition
Chemical (Potential) Energy
Term
Two answers: The energy stored in natural gas (1) used to heat (2) water.
Definition
Chemical, Thermal
Term
Two answers: The energy stored in batteries (1) used to turn on a flashlight (2)
Definition
Chemical, Electromagnetic
Term
Two answers: Rubbing your hands together (1), using friction to make heat (2)
Definition
Mechanical, Thermal
Term
Two answers: A microwave (1) using power from a plant utilizing the power in an atom's nucleus (2)
Definition
Electromagnetic, Nuclear
Term
Two answers: A lightbulb (1) turns on because of power from the wall socket.
Definition
Electromagnetic, Electrical
Term
Two answers: Fossil fuels are burned (1), to move a car (2)
Definition
Chemical, Mechanical
Term
Two answers: A spinning turbine (1) produces energy for homes (2)
Definition
Mechanical, Electrical
Term
Renewable or not renewable: Biomass
Definition
Renewable
Term
Renewable or not renewable: Coal
Definition
Not Renewable
Term
Renewable or not renewable: Petroleum
Definition
Not Renewable
Term
Renewable or not renewable: Wind
Definition
Renewable
Term
Renewable or not renewable: Solar
Definition
Renewable
Term
Renewable or not renewable: Nuclear
Definition
Not Renewable
Term
Renewable or not renewable: Hydroelectric
Definition
Renewable
Term
Renewable or not renewable: Geothermal
Definition
Renewable
Term
Energy stored in the nucleus of an atom
Definition
Nuclear Energy
Term
The energy from splitting nuclei
Definition
Nuclear Fission
Term
The energy from joining nuclei
Definition
Nuclear Fusion
Term
Which releases more energy, Fission or Fusion
Definition
Fusion
Term
Heat transfer directly through substances
Definition
Conduction
Term
Heat transfer through the movement of fluids
Definition
Convection
Term
Heat transfer through electromagnetism
Definition
Radiation
Term
Heat always moves from Hotter to Colder, true or false
Definition
TRUE
Term
A material which prevents the flow of heat or electricity
Definition
Insulator
Term
A material which facilitates the flow of heat or electricity
Definition
Conductor
Term
This circuit has one pathway for electrons to follow
Definition
Series
Term
This circuit has multiple pathways for electrons to follow
Definition
Parallel
Term
Currents always flow from positive to negative, true or false
Definition
FALSE
Term
In a series circuit, removing one bulb leaves the others on, true or false
Definition
FALSE
Term
In a parallel circuit, removing one bulb leaves the others on, true or false
Definition
TRUE
Term
In a series circuit, adding a bulb makes the others dimmer, true or false
Definition
TRUE
Term
The region around a magnet is called?
Definition
Magnetic Field
Term
A magnet is capable of producing an electric current, true or false
Definition
TRUE
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