Term
|
Definition
| the science of matter: its composition, structure, and properties |
|
|
Term
|
Definition
| the smallest particle of an element that retains the characteristics of the element |
|
|
Term
|
Definition
| a pure substance composed of only one kind of atom |
|
|
Term
|
Definition
| a particular kind of matter with well-defined properties and a fixed chemical composition |
|
|
Term
|
Definition
a characteristic of a substance that can be observed without changing it into another substance
ex. luster, hardness, color, malleability, ductility, conductors, etc. |
|
|
Term
|
Definition
| the ratio of the mass of an object to its volume |
|
|
Term
|
Definition
| a substance composed of two or more elements combined together in fixed proportions |
|
|
Term
|
Definition
| a characteristic of a substance that can be observed only through a chemical reaction that includes the substance |
|
|
Term
|
Definition
| have metallic luster, malleable, ductile, good conductors of electricity; form compounds with oxygen, which when the compounds dissolve in water, produce alkaline solutions |
|
|
Term
|
Definition
| do no conduct electricity, neither malleable nor ductile; nonmetal compounds formed with oxygen produce acids when they dissolve in water |
|
|
Term
|
Definition
| have many of the the physical properties of metals, but they have the chemical properties of nonmetals |
|
|
Term
|
Definition
| consists of atoms combined together in molecules |
|
|
Term
|
Definition
| collection of atoms bonded together |
|
|
Term
|
Definition
| contains more than one pure substance |
|
|
Term
|
Definition
| a process for separating particles suspended in a liquid from that liquid by passing the mixture through a medium that retains the particles |
|
|
Term
|
Definition
| consists of oppositely charged atoms and groups of atoms |
|
|
Term
|
Definition
| an electrically charged atom or group of atoms |
|
|
Term
|
Definition
| negatve ions; made of atoms that have gained electrons |
|
|
Term
|
Definition
| postively charged atoms that have lost electrons |
|
|
Term
|
Definition
| separation technique in which the more volatile components of a mixture are vaporized and then condensed. separating them from the less volatile components |
|
|
Term
|
Definition
| either gases of easily vaporized liquids or solids |
|
|
Term
|
Definition
| anything that has mass and takes up space |
|
|
Term
|
Definition
| measure of average kinetic energy |
|
|
Term
|
Definition
| general explanation of a widely observed phenomenon that has been extensively tested; well-tested hypothesis |
|
|
Term
|
Definition
| how many waves (cycles) that pass a given point in a specified amount of time |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| an approach to acquiring knowledge based on careful observation of phenomena |
|
|
Term
|
Definition
| tentative explanation for an observation or a series of observations |
|
|
