W6: THURSDAY: REVIEW: WATER AND pH

Term that means “water hating”. These substances do not readily dissolve in water.

• Hydrophobic

• Hydrophilic

• Solvent

• Solute

Water has a strong tendency to ionize. This is offset by the tendency for these ions to reunite. What two ions are formed when water ionizes?

• H⁺ and OH^-

• H⁺ and O^-

• H^- and OH^-

• H⁺ and OH⁺

What pH range would exist if the H+ outnumbered the OH- ions?

• pH higher than 7

• pH lower than 7

• pH at 7

• OMG IDK

What substances do living cells produce in order to help the cell maintain a stable pH level?

• Solute

• Acid

• Buffers

• Solvents

What term describes the attraction that an atom has for the electrons that are shared with another atom?

• Hydrogen

• Electronegativity

• Nonpolar covalent bond

• Ionic

This type of bond results when two identical atoms share electrons equally.

• Hydrogen

• Electronegativity

• Nonpolar covalent bond

• Ionic

The property of a liquid whereby the surface becomes cooler when molecules of higher energy escape the surface is called?

• Evaporative cooling

• Condensation

• Subduction

• Adhesions

The part of the solution that gets dissolved.

• Hydrophobic

• Hydrophilic

• Solvent

• Solute

A substance that is “water-loving” and readily dissolves in water is called?

• Hydrophobic

• b. Hydrophilic

• Solvent

• Solute

What is true of the hydroxide and hydrogen ions in a solution of pH 7?

• More H⁺ than OH^-

• Less H⁺ than OH c. They are equal

• They are equal