The emergent properties of water (cohesion, high heat capacity, good solvent) come from the fact that water is ______ and ______ hydrogen bond.

• A. Polar, can.
• B. Polar, cannot.
• C. Non-polar, can.
• D. Non-polar, cannot.

Answer: (A)

Verified step by step guidance

1. Understand that water is a molecule composed of two hydrogen atoms and one oxygen atom, forming H₂O.
2. Recognize that water is a polar molecule. This means that there is an uneven distribution of electron density, resulting in a partial negative charge near the oxygen atom and a partial positive charge near the hydrogen atoms.
3. Identify that the polarity of water allows it to form hydrogen bonds. A hydrogen bond is a weak bond between a hydrogen atom in one molecule and an electronegative atom (like oxygen) in another molecule.
4. Consider how these hydrogen bonds contribute to water's emergent properties: cohesion (water molecules sticking together), high heat capacity (water's ability to absorb heat without a significant temperature change), and being a good solvent (ability to dissolve many substances).
5. Conclude that the correct answer is 'Polar, can' because water's polarity and ability to form hydrogen bonds are responsible for its unique properties.