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Chapter 2: Matter 2A
| Term | Definition |
|---|---|
| color | physical property |
| shape | physical property |
| density | physical property |
| magnetism | physical property |
| conductility | physical property |
| ductility | physical property |
| rust | chemical property |
| burning something | chemical property |
| rot/decomposing | chemical property |
| combustion & flamability | chemical property |
| melting | solid to liquid |
| freezing | liquid to solid |
| condensing | gas to liquid |
| vaporizing | liquid to gas |
| compounds | two or more DIFFERENT elements chemically bonded together |
| molecules | snallest individual units in compounds - 2 or more elements chemically bonded together; they can be made of the SAME element to two or three different elements |
| diatomic elements | hydrogen, nitrogen, oxygen, flourine, chlorine, bromine, iodine |
| monatomic elements | neon, helium, argon, radon, xenon |
| CO2 | compound |
| NaCl | compound |
| N2 | element |
| Cu | element |
| Chlorine | element |
| water | compound |
| soil | heterogenous mixture |
| pure air | homogenous mixture |
| alcohol | compound |
| solubility | physical property |
| boiling point | physical property |
| water is heated and changed to steam | physical change |
| evaportaion | physical change |
| milk sours | chemical change |
| pancakes cooking on a griddle | chemical change |
| grass growing on a lawn | chemical change |
| water is absorbed by a paper towel | physical change |
| oxygen | element |
| carbon dioxide | compound |
| subscripts | smaller numbers written at the lower right of the symbol in a formula |
| coefficients | the numbers in front of a formula and refer to the entire unit |
| formulas | represent compounds and tell what type fo element and how many atoms of each type of element are in and individual unit of the compound |
| no change in the composition of the matter | physical properties |
| how matter changes in the presence of other matter | chemical change |