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atomic theory 2
Term | Definition |
---|---|
Conservation of mass | matter that is NEVER created or destroyed it simply reorganize its self. |
Compound | made from 2 different atoms that are chemically combined. |
Molecule | 2 atoms combined. |
Covalent compound | 2 nonmetals combined |
Ionic compound | a metal and nonmetal combined |
Lewis Dot Structure | a picture that shows how elements form compound, using valence electrons. |
Element | PURE; one type of atom. |
Substance | Is matter that has the same fixed compotion and properties |
heterogeneous mixture | A type of mixture where the substances are not mixed evenly. |
solvent | A substance that devolves the solute. |
solute | substance that dissolves and seems to disappear. |
homogeneous mixture | when two or more substances are mixed but do not combine chemically to form a single |
precipitate | a liquid becoming a solid |
solution | an other word for homogeneous mixture. |
physical change | It can be physically separated. |
vaporization | When a liquid forms into a gas. |
condensation | The process by which a gas or vapor changes to a liquid. |
sublimation | The process of changing from a solid to a gas. |
diposition | The particles may originate from a vapor, solution, suspension, or mixture. |
chemical change | When there is a color change, smell or gas coming out. |