Chemistry of Life Vocab Terms Flashcards
(22 cards)
Capillarity
the attraction between molecules that results in the rise of liquids in small tubes
Catalyst
a substance that changes the rate of the chemical reaction without being consumed or change significantly
Buffer
A solution made from weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it
Polar
Describes a molecule with opposite chargers on opposite ends
Energy
the capacity to do work
Acid
Any compound that increases the number of hydronium ions when dissolved in water
Has a pH of below 7
Adhesion
The attraction that forms between two bodies of different substances that are in contact with each other
Product
A substance that forms in a chemical reaction
Activation Energy
The minimum amount of energy required to start a chemical reaction
Base
Any compound that increases the number of hydroxide ions when dissolved in water
Has a pH of above 7
Cohesion
The force that holds molecules of a single material together
Enzyme
A type of protein of RNA molecule that speeds up metabolic reactions in plant and animals without being permanently changed or destroyed
Solute
In a solution, the substance that dissolves the solvent
(What is being dissolved)
Reactant
A substance or molecule that participates in a chemical reaction
Solution
A homogeneous mixture throughout which two or more substances are uniformly dispersed
Solvent
In a solution, the substance in which the solute dissolves
(What dissolves the solute)
Hydrogen Bonds
The intermolecule 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
Chemical Reaction
The process by which one or more substances change to produce one or more different substances
Concentration
The amount of a particular substance in a given quantity of a mixture, solution, or ore
Hydroxide Ion
The OH- ion
pH scale
a range of values that are used to express the acidity or alkalinity of a system
0-14
Acid: below 7
Base: above 7
Neutral: 7
Hydronium Ion
An ion consisting of a proton combined with a molecule of water (H+ or H30)
