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Modern Chemistry C1
| Question | Answer |
|---|---|
| study of matter and the changes it undergoes because of energy | chemistry |
| study of carbon containing compounds | organic chemistry |
| why do chemists use instruments | to improve ability to observe and make measurements |
| study of materials that do not contain carbon | inorganic chemistry |
| study of composisiton of materials | analytical hemistry |
| study of substances and processes in living things | biochemistry |
| Using math and computers to understand chemistry and to design new compounds | theoretical chamistry |
| any substance with definite composition | chemicals |
| resrach done to increase knowledge | basic |
| research conducted to solve a problem | applied |
| work done to produce a product that will improve life | technological development |
| anything tht has mass and volume | matter |
| amount of 3-D space an object occupies | volume |
| measure of the amount of matter | mass |
| Smallest unit of element that maintains the chemical identify of that element | atom |
| Pure substance made of only one type of atom | element |
| Made from atoms of 2 or more elements that are chemically bonded, can be broken down into simple stable substances by chemical means | compound |
| properties that depend on amount of matter that is present | extensive |
| properties that do not depend on amount of matter that is present | intensive |
| properties that can be observed or measured without changing the identity of a substance | physical |
| properties that relates to a substance’s ability to undergo changes into a different substance | chemical |
| definite volume, definite shape, particles vibrate or rotate in place | solid |
| definite volume, indefinite shape, partiles slide over one another | liquid |
| indefinite volume, indefinite shape, atoms move very quickly, atoms are far apart | gas |
| a change in which a substance is converted into a different substance | chemical change |
| another term for chemical change | chemical reaction |
| energy is never destroyed or created | law of conservation of energy |
| Blend of 2 or more types of matter, variable compositions, Each retains its own identify and properties | mixture |
| Fixed composition, compound or element | pure substance |
| uniform mixture, cannot distinguish the individual parts | homogeneous mixture |
| mixture that is not uniform, can distinguish the individhal parts | hetereogenous mixture |
| the big picture, seen with the naked eye | macroscopic |
| at the particle level, nanoscale | microscopic |
| pure substance, cannot be broken down by chemical means | element |
| columns on the periodic table, an also be alled families | groups |
| rows on the periodic table | periods |
| elements that are good conductors | metals |
| elements that are poor conductors | nonmetals |
| hammered or rolled into thin sheets | malleable |
| can be drawn into wires | ductile |
| an element that has some characteristics of metals and nonmetals, appear along staircase line | metalloids |
| elements in group 18 | noble gases |
| a homogeneous mixture is also called theis | solution |
Created by:
mrsrutschilling
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