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Stack #4708867
| Question | Answer |
|---|---|
| atom | the basic until of matter |
| nucleus | the center of an atom, which contains the protons and neutrons |
| electron | negatively charged particle; located in the space surrounding the nucleus |
| element | pure substance that consists entirely of one type of atom |
| isotope | one of several forms of singles element, which contains the same number of protons numbers of neutrons |
| compound | substance formed by the chemical combination of two or more elements in definite proportions |
| ionic bond | chemical bond formed when one or more electrons are transferred from one atom to another |
| ion | atom the has a positive or negative charge |
| covalent bond | type of bond between atoms in which the electrons are shared |
| molecule | smallest unit of most compounds that displays all the properties of that compound |
| van der waals forces | slight attraction that develops between oppositely charged regions of nearly molecules |
| hydrogen bond | weak attraction between a hydrogen atom and another atom |
| cohesion | attraction between molecules of the same substance |
| adhesion | force of attraction between different kinds of molecules |
| mixture | material composed of two or more elements or compounds that are physically mixed together but not chemically combined |
| solution | type of mixture in which all the components are evenly distributed |
| solute | substance that is dissolved in a solution |
| solvent | dissolving substance in a solution |
| suspension | mixture of water and nondissolved matricidal |
| pH scale | scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 to 14 basic |
| acid | compound that forms hydrogen ions (H+) in solution; a solution with pHof less than 7 |
| base | compound that produces hydroxide ions (OH-) in solution; solution with a pH of more than 7 |
| buffer | compound that prevents sharp, sudden changes in pH |
| monomer | |
| polymer | |
| carbohydrate | |
| monosaccharide | |
| liqid | |
| nucleic acids | |
| nucleotide | |
| protein | |
| amino acid | |
| chemical reaction | |
| reactant | |
| product | |
| activation energy | |
| catalyst | |
| enzyme | |
| substrate |
Created by:
brynh