Hydrogen Bond
A. a molecule containing a very large number of atoms, such as a protein, nucleic acid, lipid, or carbohydrate
B. a weak bond between two molecules that happens in polar molecules
C. 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
D. a strong bond between two atoms that share their elections
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Atom
A. a land region on the earth’s surface covered by biological communities that group under the same climatic patterns like rainfall and temperature.
B. the descriptive and conceptual findings collected through questionnaires, interviews, or observation
C. a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
D. an element that remains unchanged or unaffected by other variables. It’s used as a benchmark or a point of comparison against which other test results are measured.
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