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Atom
The smallest unit of matter that can enter into a chemical
reaction
TERM 2
Molecule
DEFINITION 2
A combination of atoms forming a specific chemical
compound
TERM 3
Chemistry
DEFINITION 3
The science of the interactions between atoms and
molecules
TERM 4
Chemical Bonds
DEFINITION 4
An attractive force between atoms forming a molecule
TERM 5
Ionic Bond
DEFINITION 5
A chemical bond formed when atoms gain or lose electronsin
the outer energy levels
Cation
A positively charged ion
TERM 7
Anion
DEFINITION 7
An ion with a negative charge
TERM 8
Covalent Bond
DEFINITION 8
A chemical bond in which the electrons of one atom are
shared with another atom
TERM 9
Acid
DEFINITION 9
A substance that dissociates into one or more hydrogen ions
and one or more negative ions
TERM 10
Base
DEFINITION 10
A substance that dissociates into one or more hydrogen ions
and one or more positive ions
Protein
A large molecule containing carbon, hydrogen, oxygen, and
nitrogen (and sulfur) some proteins have a helical structure
and others are pleated sheets
TERM 17
Enzymes
DEFINITION 17
A molecule that catalyzes biochemical reaction in a living
organism, usually a protein
TERM 18
Deoxyribonucleic acid
DEFINITION 18
(DNA) the nucleic acid of genetic material in all cells and
some viruses
TERM 19
Ribonucleic Acid
DEFINITION 19
(RNA) the class of nucleic acid that comprises messenger
RNA, ribosomal RNA, and transfer RNA
TERM 20
Adenosine Triphosphate
DEFINITION 20
An important intracellular energy source
