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Stack #21843

Basic Chemistry-Body Structure and Function

QuestionAnswer
Matter anything that occupies space and has weight
element a fundamental substance that cannot be broken down into a simpler form by ordinary chemical means
What four elements makes up the human body carbon, hydrogen, oxygen, and nitrogen
atom basic unit of matter
An atom is composed of three subatomic particles neutrons, protons, and electrons
isotope has the same atomic number but a different atomic weight
The inner electron holds how many electrons? two
Outer electron shells hold how many electrons? eight
ionic bonds formed as electrons are transferred to stabilize the shells of the atom
covalent bonds formed as the electrons of the outer shells are shared by the interacting atoms
hydrogen bonds intermolecular bonds and do not involve transfer, or sharing, of the electrons
cation positively charged ion
anion negatively charged ion
molecule a substance formed from two or more atoms
compound a substance that forms when two or more different atoms bond
acid an electrolyte that dissociates into hydrogen ion
base neutralizes an acid by producing a salt and water
a pH of 7 neutral
a pH of 12 base
a pH of 4 acid
The six forms of energy mechanical, chemical, electrical, radiant, thermal, and nuclear
Transfers energy from one chemical substance to another ATP
Created by: katyrn
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