Question | Answer |
Energy | The capacity to do work |
Chemical Reaction | The process by which one or more substances change to produce one or more different substances |
Reactant | A substance or molecule that participates in a chemical reaction |
Product | A substance that forms in a chemical reaction |
Activation Energy | The minimum amount of energy required to start a chemical reaction |
Catalyst | A substance that changes the rate of a chemical reaction without being consumed or changed significantly |
Enzyme | The type of protein or RNA molecule that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed |
Polar | Describes a molecule with opposite charges on opposite ends |
`Hydrogen Bond | The intermoleculer force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule |
Cohesion | A force that holds molecules of a single material together |
Adhesion | The attractive force between two bodies of different substances that are in contact with each other |
Capillarity | The attraction between molecules that results in a rise of a liquid in small tubes |
Solution | A homogeneous mixture throughout which two or more substances are uniformly dispersed |
Solute | In a solution, the substance in which the solute dissolves |
Buffer | A solution made from a weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it |
Concentration | The amount of a particular substance in a given quantity of a mixture, solution, or ore |
Solvent | In a solution, the substance in which the solute dissolves |
Hydroxide ion | The OH- ion |
Hydronium ion (Hydrogen ion) | An ion consisting of a proton combined with a molecule of water |
PH Scale | A range of values that are used to express the acidity or alkalinity (basicity) |
Acid | Any compound that increases the number of hydronium ions when dissolved in water |
Base | Any compound that increases the number of hydroxide ions when dissolved in water |