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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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Water, and many other molecules, exhibit a type of bond called hydrogen bonding. Hydrogen bonding is caused by:
  1. A covalent interaction between two molecules.
  2. A bond between two hydrogen atoms.
  3. An attractive interaction between two polar molecules.
  4. A gravitational interaction between molecules with large nuclei.
  5. A bond formed between a carbon and a hydrogen.
Explanation
Answer: C - A hydrogen bond is formed through an attractive interaction between two polar molecules. Water is an example of a very polar molecule, due to the electronegativity difference between oxygen and the two hydrogens in the molecule.
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