click below
click below
Normal Size Small Size show me how
atomic theory pt. #2
compounds
Question | Answer |
---|---|
conservation of mass | matter is never created or destroyed it recognizes itself. |
compound | chemical combination of two or more atoms from different elements. |
covalent | compound between 2 non-metals |
ionic | compound between a metal and a non-metal |
molecules | two or more atoms combined |
lewis Dot Structure | shows the way compounds form using their valence electrons |
substance | matter with a fixed composition whose identity can be changed by chemical processes |
precipitate | solid that comes back out of its solution because of a chemical change occurring |
homogeneous mixture | a mixture that is completely combined and that you can not see a difference in. |
heterogeneous mixture | a mixture that is incompletely combined and that you can see differences in. |
solute | a substance that dissolve and seem to disappear into another substance. |
solovent | the substance that dissolves the solute |
solution | the homogeneous mixture whose element and/or compounds are evenly mixed or bonded together |
physical change | form or appearance of matter changes but not its composition |
vaporization | liquid changes to a solid or a liquid changes to a gas |
condensation | a gas changes into a liquid |
sublimation | solid changes directly into a gas |
deposition | a gas changing directly into a solid |
chemical change | substances are changed into two different substances |