| Term | Definition |
|---|
| element | substances that cant be chemically broken down into simpler substances |
| compound | a substance made up of two or more elements that are chemically combined |
| mixture | two or more substances that are not chemically combined-they are physically combined |
| pure substance | any element or compound |
| molecule | smallest part of a substance that has all the properties of that substance and contains 2 or more elements |
| chemical bond | force of attraction that holds atoms together |
| dissolve | go into solution |
| solution | mixture in which the particles of one substance are evenly mixed with the particles of another substance |
| solvent | substance in which a solute dissolves |
| soluble | able to dissolve |
| solubility | ability on one substance to dissolve in another at a given temperature |
| insoluble | NOT able to dissolve |
| suspension | mixture of two materials or more that separate on standing( let it sit there for a while) |
| colloid | suspension in which the particles are permanently suspended |
| colloids:examples | jello, whipped cream, smoke, paint |
| suspensions:examples | salad dressing, orange juice, muddy water, snow globe |
| solutions:examples | salt water, sugar water, coffee |
| elements:examples | carbon, copper, zinc, aluminum |
| homogeneous mixture | substances in the mixture are evenly spread out- same throughout |
| heterogeneous mixture | substances are UNEVENLY spread out- can be seperated, filtered, a suspensioin is this type of mixture |
| compounds:examples | water H20, salt NaCl, carbon dioxide CO2 |
| physical property | characteristic of a material that can be seen ex. density, thermal conductor, state of matter, size, shape |
| physical change | change in color,shape, size or state of matter |
| chemical property | characteristic of a substance that indicates whether it can make a chemical change like flamibility or reactivity with oxygen |
| chemical change | change of a substance to a completely different substance |
| metals | left of the zigzag line, shiny, malleable, ductile, good conductors of electric current, good conductors of thermal energy |
| nonmetals | right of the zigzag line, not malleable/ductile, not shiny, poor conductors |
| metalliods | have some properties of metals and some properties of nonmetals, semiconductors, found along the zigzag line, |
Combine with other sets
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