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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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Which of the following is the best definition for a covalent bond?
  1. A weak bond that occurs due to electrostatic forces.
  2. A bond that is formed by sharing of electrons between atoms.
  3. A bond that is formed through a charge difference between two atoms.
  4. A bond that has significant dipole moment, resulting in strong bonding forces.
  5. A weak polar bond formed through interaction of electronegativity.
Explanation
Answer: B - Covalent bonds are formed through the sharing of electrons between atoms. Ionic bonds, on the other hand, are formed through a charge difference. Covalent and ionic bonds are both very strong interactions.
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