Unit 1.1 - Properties of Water

What type of bond is formed between water molecules that gives water its unique properties?

• hydrogen bonds

• covalent bonds

• ionic bonds

• metallic bonds

Water must travel from the roots to the leaves of trees hundreds of feet tall. Which property of water is responsible for this?

• cohesion & adhesion

• high specific heat

• solvency

• hydrogen bonding

The Jesus lizard and water striders are able to run across the surface of water due to which property of water?

• cohesion

• adhesion

• surface tension

• the heat of vaporization

Water molecules interact with one another through:

• intramolecular forces

• ionic bonds

• hydrogen bonds

• covalent bonds

Water is a very versatile solvent because water molecules are __________.

• polar

• ionic

• hydrophobic

• nonpolar

What happens when salt (NaCl) is dissolved in water?

• Decrease in pH due to release of protons H+

• Precipitation out of solution

• Disassociation into sodium Na+ and chloride Cl- ions

• Formation of covalent bonds with water

Adhesion is best described as which of the following?

• the clinging of one substance to another substance

• a property of water that helps moderate Earth's temperature

• the process that contributes to the transport of water and dissolved nutrients in plants by causing water molecules to tug on other water molecules

• the process by which a crystalline lattice forms

Water's polarity is caused by an unequal distribution of charge between oxygen and hydrogen. This is due to the elements having a difference in ______________.

• acidity

• electronegativity

• size

• atomic number

The many properties of water are due to water being_____________.

• Nonpolar

• Hydrophobic

• Ionically bonded

• Polar

What is the molecular formula for water?

• HCl

• NaCl

• H202

• H2O