Exploring Bonding in Chemistry of Life

What directly participates in chemical reactions between two atoms?

• Nuclei

• Electrons

• Neutrons

• Protons

What type of bond is formed by the complete transfer of electrons?

• Hydrogen bond

• Metallic bond

• Ionic bond

• Covalent bond

Which bond involves the sharing of electron pairs between atoms?

• Metallic bond

• Covalent bond

• Hydrogen bond

• Ionic bond

What type of covalent bond has unequal sharing of electrons?

• Nonpolar covalent bond

• Ionic bond

• Polar covalent bond

• Metallic bond

Which molecule is a classic example of hydrogen bonding?

• Sodium chloride

• Water

• Oxygen gas

• Methane

What analogy is used to describe hydrogen bonding?

• Post-it note

• School glue

• Super glue

• Velcro

Which bond is considered the strongest?

• Metallic bond

• Hydrogen bond

• Covalent bond

• Ionic bond

What are the starting materials in a chemical reaction called?

• Catalysts

• Products

• Reactants

• Solutions

What remains constant in a chemical reaction?

• Number of reactants

• Type of bonds

• Number of products

• Amount of matter

What would likely happen to CO2 levels if ocean productivity increases?

• Decrease

• Remain constant

• Increase

• Fluctuate unpredictably