Covalent Bond
A. a molecule containing a very large number of atoms, such as a protein, nucleic acid, lipid, or carbohydrate
B. a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
C. a strong bond between two atoms that share their elections
D. a weak bond between two molecules that happens in polar molecules
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Macromolecule
A. a chemical substance that cannot be broken down into other substances. The basic particle that constitutes a chemical element is the atom, and chemical elements are distinguished from each other by the number of protons in the nuclei of their atoms
B. a substance made up of two or more different chemical elements combined in a fixed ratio.
C. a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
D. a molecule containing a very large number of atoms, such as a protein, nucleic acid, lipid, or carbohydrate
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