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Atomic Theory
Term | Definition |
---|---|
Element | Pure is made of only one type of atom |
Compound | Chemical combination of 2 or more atoms from different element |
molecule | 2 or more atoms combine compounds |
Covalant | cmpa btm 2 Nm |
Ionic | cmpa btm a metal and Nm |
Lewis Dot Structure | Shows the way cmpas form using valence electrons |
Physical Change | is one in which the form or appearance of matter changes |
vaporization | Liquid changes too solid. A liquid changes into a gas. |
condensation | gas changes into a liquid. |
sublimation | solid changes directly into a gas |
deposition | gas changes into solid |
chemical change | substances are changed into different substances |
law of conservation of mass | a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system |