1. The attraction between a hydrogen atom on one water molecule and the oxygen atom on another
Hydrogen bond

2. solvent
The substance in which a solute dissolves

3. pH scale
A measurement system to indicate the concentration of H+ ions in solution

4. Covalent bond
A bond in which electrons are shared between atoms

5. suspension
A mixture of water and nondissolved material; includes important biological fluids like blood

6. acid
Any compound that forms H+ ions in solution

7. Ionic bond
A bond formed between oppositely charged ions

8. cohesion
An attraction between molecules of the same substance

9. mixture
A material composed of two or more elements or compounds that are physically mixed together but not chemically combined

10. adhesion
An attraction between molecules of different substances

11. solution
The components (parts) of these are evenly distributed throughout

12. base
A compound that produces hydroxide (OH-) ions in solution

13. buffer
Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH (keep pH balanced)

14. solute
The substance in a solution that is dissolved