Homeostasis, Chemistry
(Ivy Tech) 2026 | Study
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Updated 2026 Questions and Answers
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, matter Anything that occupies space and has mass; the physical material of the universe
element a pure substance that cannot be created or broken down by ordinary chemical
means
most abundant elements in humans oxygen (O), carbon (C), hydrogen (H), nitrogen (N)
compound substance composed of two or more elements joined by chemical bonds
proton A subatomic particle that has a positive charge and that is found in the nucleus of
an atom
neutron A subatomic particle that has no charge and that is found in the nucleus of an
atom