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Atomic Theory Pt.2
Term | Definition |
---|---|
Compound | Made from 2 different atoms that chemically combine |
Conservation of Mass | matter is never created or destroyed it is simply rearranges itself |
Covalent Compound | 2 Nonmetals |
Ionic Compound | metal and Nonmetal |
Lewis Dot Structure | picture that shows how element form compound using valance electrons |
Substance | is a matter that has the same fixed composition and properties. |
Heterogeneous mixture | A type of mixture where the substances are not mixed evenly |
Homogeneous mixture | type of mixture where two or more substances are evenly mixed on a molecular level but are not bonded together |
Solution | homogeneous mixture whose elements and/or compounds are evenly mixed at the molecular level but are not bonded together |
Solute | substance that dissolves and seems to disappear into another substance |
Solvent | substance that dissolves the solute |
Precipitate | solid that comes back out of it's solution because of a chemical reaction or physical change |
Molecule | a group of atoms bonded together |
Physical change | one in which the form or appearance of matter changes, but not it's composition |
Vaporization | a liquid changes into a gas |
Condensation | a gas changes into a liquid |
Sublimation | a solid that changes directly into a gas |
Deposition | gas changes into a solid |
Chemical change | substances are changed into different substances |