Terms : Hide Images
| 316256069 | chemistry | study of composition, structure, and properties of matter; processes that matter undergoes; and energy changes that accompany these processes | 0 | |
| 316256077 | basic research | increase knowledge, like finding the reason behind a chemical reaction | 1 | |
| 316256078 | applied research | used to solve a problem | 2 | |
| 316256079 | matter | anything that has mass and takes up space | 3 | |
| 316256080 | mass | measure of the amount of matter in an object | 4 | |
| 316256081 | atom | smallest unit of an element with the chemical identity of that element | 5 | |
| 316256082 | element | pure substance made of only one type of atom; can't be broken into simpler substances | 6 | |
| 316256083 | compound | made from chemically bonded atoms of 2 or more elements | 7 | |
| 316256084 | extensive property | depends on amount of matter present | 8 | |
| 316256085 | intensive property | doesn't depend on amount of matter present | 9 | |
| 316256086 | physical property | can be found without changing the identity of the substance | 10 | |
| 316256087 | chemical property | ability of a substance to change into a different substance | 11 | |
| 316256088 | physical change | doesn't involve change in the identity of a substance | 12 | |
| 316256089 | chemical change | chemical reaction; reactants are converted to products with completely different properties | 13 | |
| 316256090 | change of state | physical change from one state to another | 14 | |
| 316256091 | solid | definite volume and shape; particles packed together | 15 | |
| 316256092 | liquid | definite volume and indefinite shape; particles flowing | 16 | |
| 316256093 | gas | indefinite volume and shape; particles move quickly | 17 | |
| 316256094 | plasma | high temperature; atoms lose most of their electrons | 18 | |
| 316256095 | mixture | blend of types of matter that keep their own identity | 19 | |
| 316256096 | homogeneous mixture | solution; uniform in composition | 20 | |
| 316256097 | heterogeneous mixture | not uniform in composition | 21 | |
| 316256098 | pure substance | all samples have the same properties and composition | 22 | |
| 316256099 | periodic table | periodic chart | 23 | |
| 316256100 | group (family) | column; elements with similar properties due to the same number of valence electrons | 24 | |
| 316256101 | period | row; physical and chemical properties change regularly as you go across | 25 | |
| 316256102 | metals | good conductors of heat and electricity; mostly solid at room temperature; malleable and ductile; shiny luster | 26 | |
| 316256103 | nonmetals | poor conductors of heat and electricity; mostly gas at room temperature; brittle | 27 | |
| 316256104 | metalloids | some characteristics of metals, others of nonmetals; all are solid at room temperature; semiconductor; semimalleable | 28 | |
| 316256105 | noble gases | generally unreactive because they have all the valence electrons they need; group 18; gases at room temperature | 29 | |
| 316256106 | qualitative | based on qualities | 30 | |
| 316256107 | quantitative | based on numbers | 31 | |
| 316256108 | SI units | international system of units | 32 | |
| 316256109 | # of SI base units | 7 | 33 | |
| 316256110 | measurement | data using quantities | 34 | |
| 316256111 | SI unit for length | meter | 35 | |
| 316256112 | SI unit for mass | kilogram | 36 | |
| 316256113 | SI unit for time | second | 37 | |
| 316256114 | SI unit for temperature | kelvin (celsius plus 273) | 38 | |
| 316256115 | SI unit for amount of substance | mole | 39 | |
| 316256116 | accuracy | closeness of measurements to accepted value of quantity | 40 | |
| 316256117 | precision | closeness to set of measurements of same quantity made in same way | 41 | |
| 316256118 | percentage error | (accepted value - experimental value)/(accepted value) *100 | 42 | |
| 316256119 | significant figures | all certain digits plus one uncertain digit | 43 | |
| 316256120 | scientific notation | method of writing numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10 | 44 | |
| 316256121 | addition and subtraction with significant figures | round to least amount of decimal places | 45 | |
| 316256122 | multiplication and division with significant figures | round to least amount of significant figures | 46 | |
| 316256123 | conversion factor | relationship between units that express the same property | 47 |
