| A | B |
|---|
| Polar molecules | molecules that have an unequal distribution of charges |
| Hydrogen bond | a weak interaction involving a hydrogen atom and a fluorine, oxygen or nitrogen atom |
| Mixture | is a combination of two or more substances in which each substances keeps its individual characteristics and properties |
| Solution | is another name for a homogeneous mixture |
| Solvent | is a substance in which another substance is dissolved |
| Solute | is the substance that is dissolved in the solvent |
| Homogeneous mixture | mixture with same composition throughout |
| Heterogeneous mixture | mixture where the parts remain distinct |
| Acids | substances that release hydrogen ions when dissolved in water |
| Bases | substances that release hydroxide ions when dissolved in water |
| pH | the measure of concentration of H+ in a solution |
| Buffers | are mixtures that can react with acids or bases to keep the pH within a certain range |
