| A | B |
|---|
| adhesion | the atrractive force between 2bodies of different substances that are in contact with each other |
| akaline | solution with ph above seven |
| atomic number | the nuber of protons in the nucleus of a atom ;the atomic number is the same for all atoms of an element |
| buffer | a solution made from a weak acid and its conjugat base that nutralizes samll amounts of acids or bases added to it |
| chemical bond | the atrractive force that holds atoms or ions together |
| chemical reaction | the process which one or more substances |
| cohesion | the force that holds molecules of a singlematerial together |
| electron | a subatomic particle that has a negative charge |
| element | a subatance that cannot be seperated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number |
| enzymes | a type of protien of rna molecule that speeds metabollic reactions in plant and animals without permantlry changing or destroying |
| hydrogen bond | the inter molecular force occuring when a hydrogen atom that is bonded to a electron negative atom of 1 moleculeis attracted 2 to unshared electrons |
| hydronium ioN | An ion consisting of a proton |
| hydroxide ion | the OH- ION |
| isotope | an atom that has the same nuber of protons as other atoms of the same elements do but that has a different number of neutrons |
| mass | a measure of the amount of matter an a object ; a fundmental propertyof an object that is notr affected by the forces act on the object |
| mass number | the sum of the numbers of protons and netrons in the nuculeus of an atom |
| matter | anything that has mass and takes up space a |
| matabolism | all the chemical reactions that occor in a organism |
| molecule | a group of atoms that are held together bye chemical forces |
| oxidations reactions | a chemical reaction in which a reactant loses or 1 or more electrons such that the reactants becomes more positive in charge |
| polar molecule | because of its uneven distrubitve of charge water is polar molecule |
| proton | a subatomic particle that has a postive charge and that is located at a nucleus of an atom the number of the nucleus is the atomic number which determines the idenity of a element |
| reactants | a substance or molecule that partipates in a chemical reaction |
| reduction | a chemical change in which electrons are gained by removal or addition of oxygen or the element addition of eletrons |
| solute | in a solution the substance that dissolves in the solvent |
| solvent | in the solution the substance in which the solute dissolves |
