Biology Vocabulary Quiz 3

What is the electrical attraction between two oppositely charged atoms or groups of atoms called?

• Covalent bond

• Hydrogen bond

• Ionic bond

• Polar molecule

What is a molecule joined by nonpolar covalent bonds?

• Polar molecule

• Solvent

• Nonpolar molecule

• Ion

What is a weak electrostatic bond formed by the attraction of opposite charges between a hydrogen atom and an oxygen, fluorine, or nitrogen atom?

• Ionic bond

• Hydrogen bond

• Covalent bond

• Chemical bond

What is the type of chemical bond formed when atoms share electrons?

• Ionic bond

• Hydrogen bond

• Covalent bond

• Nonpolar molecule

What is a molecule joined by polar covalent bonds and has oppositely charged regions?

• Nonpolar molecule

• Polar molecule

• Solvent

• Ion

What is a chemical bond?

• A bond formed by sharing electrons

• A bond formed by transferring electrons

• A force that holds molecules and compounds together

• A weak bond between hydrogen and oxygen

What is a polar molecule?

• A molecule with no charged regions

• A molecule with oppositely charged regions

• A molecule that is a solvent

• A molecule that is an ion

What is an ion?

• A neutral atom

• An atom with no electrons

• An atom that is negatively or positively charged

• A molecule with oppositely charged regions

What are substances that are polar, like water, and easily dissolve in water called?

• Hydrophobic

• Hydrophilic

• Solute

• Acid

What is the energy-requiring process by which atoms or groups of atoms in a substance are changed into different substances?

• Adhesion

• Solubility

• Chemical reaction

• Evaporation