"SUBSTANCE"
"RELATIONSHIPS"
"DIVERSITY"
"ZING"
"CONVERSION"
100
Anything that occupies space and has mass. It normally has three states: solid, liquid, and gas.
What is matter?
100
An atom that has an electric charge different from zero and are created when atoms gain or lose electrons.
What is an ion?
100
A change in which a substance loses its characteristics and changes into one or more new substances.
What is a chemical change?
100
The ability to do work or to cause change.
What is energy?
100
A measure of the unusable energy that escapes when energy is being converted from one form to another.
What is entropy?
200
Pure substances that cannot be further broken down into simpler substances by ordinary chemical reactions.
What are elements?
200
A bond that transfers an electron from one atom to another resulting in attraction between positively charged ions.
What is an ionic bond?
200
Alteration of a substance in its state of matter and appearance without its being changed into a new substance.
What is a physical change?
200
The energy of motion.
What is kinetic energy?
200
A reaction that uses more energy than it releases.
What is an endothermic reaction?
"endo-" = within "-thermic" = heat
300
The smallest unit of an element that is still an element.
What is an atom?
300
Atoms forming molecules by sharing electrons and do not separate easily.
What is a covalent bond?
300
A substance that includes more than one type of element and/or compound.
What is a mixture?
300
Energy of position.
300
A reaction that releases more energy than it uses.
What are exothermic reactions?
"exo-" (outside of)
400
The center of the atom is a cluster of positively charged particles and neutral charged particles.
What is a nucleus?
400
Two or more atoms covalently bonded; it is the smallest unit of a substance that retains the properties of that substance.
What is a molecule?
400
A substance whose smallest particles include more than one element chemically bonded.
What is a compound?
400
Thermal energy that is moving or is capable of moving.
What is heat?
400
The energy needed to break chemical nods in the reactants to start a reaction.
What is activation energy?
500
Negatively charged particles that move constantly in levels, or shells, around the nucleus.
What are electrons?
500
Expresses the number and type of atoms of each element are in a molecule.
What is a molecular formula?
500
The distribution of electrons in an atom or molecule in atomic or molecular orbitals.
What is an electron configuration?
500
In any process, energy is neither lost nor created; it can change forms.
What is The First Law of Thermodynamics?
500
A chemical that allows a reaction to have a much lower activation energy than it normally would have.
What is a catalyst?
600
Responsible for the binding and stability of atoms as the atoms form molecules.
What are electrons?
600
Shows the actual organization, binding, and overall structure of a compound or how the atoms are arranged.
600
Identifies the number and element of each type of atom in a compound.
What is a chemical formula?
600
Whenever energy is used, some is wasted but not destroyed.
What is The Second Law of Thermodynamics?
600
An equation of chemical formulas that shows the exact numbers of atoms and compounds in a chemical reaction.
What is a chemical equation?