U2L3 - Lecture Presentation - Water and Its Solutions

Multiple Choice

A weak force of attraction between molecules that is important in biological molecules is know as...

• ionic bonds.

• covalent bonds.

• van der Waal's force.

• covalent interactions.

Multiple Select

Which best describes van der Waals forces in water?

Multiple select question.

• • attractive forces between molecules

• • cause water to form droplets

• forces between atoms that make up water molecules

Multiple Choice

Which is a combination of two or more substances in which each substance retains its individual characteristics and properties?

• compound

• solvent

• mixture

• solution

Multiple Choice

What is a mixture that can react with acids or bases to keep the pH in a particular range?

• isotope

• solute

• buffer

• colloid