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E, C, and M
Elements, Compounds and Mixtures (Galimberti)
Term | Definition |
---|---|
Element | A pure substance that cannot be separated into a simpler substance. |
Atoms | The smallest unit of an element that maintains the properties of the element |
Compound | A pure substance made of two or more different elements that are chemically combined |
Heterogeneous | A mixture with molecules that are not mixed up in an even distribution (can see the different parts of the mixture) |
Homogeneous | A mixture with molecules that are mixed up in an even distribution (looks like it doesn't have different things mixed together) |
Mixture | Two or more substances that are not chemically combined |
Solution | A homogeneous mixture that appears to be a single substance and will never settle out (ex salt water) |
Solute | In a solution, the substance being dissolved in the solvent |
Solvent | In a solution, the substance in which the solute dissolves |
Colloid | A mixture in which particles are dispersed throughout but are not heavy enough to settle out (ex. mayonnaise) |
Suspension | A heterogeneous mixture in which the particles in a liquid or gas are heavy enough to settle out (ex. snow globe) |
Pure Substance | A substance in which there is only one type of particle that has definite chemical and physical properties |
Malleable | Able to be bend, hammered, or rolled into sheets without cracking |
Ductile | Able to be stretched into a thin wire |
Metal | An element that is shiny and that conducts heat and electricity well. |
Nonmetal | An element that is dull in appearance and does not conduct heat or electricity well |
Metalloid | An element that has both properties of a metal and nonmetal |
Molecule | 2 or more atoms of the same or different element bonded together. |