The Vocab of Chem
25 pts. 10/15
Terms
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- odor
- strong weak pungent sweet choking?
- energy is
- capacity to move or change matter
- physical properties
- can be observed without changing composition of matter
- sectility
- to be cut
- potential energy
- possible energy
- easily observed property is...
- state
- energy can't be
- destroyed made but can be transformed or transferred
- chem is study of
- matter
- endothermic
- energy absorbed, cool, pc
- all chem properties are
- intensive
- luster
- solid, shiny, dull
- intensive
- do not depend on amount of matter present
- physical change
- only effects phys properties. change form shape
- chemical change
- produces one or more substances
- the extensive properties are...
- mass, volume, and length
- boiling point
- temperature liquid bubble and turn to gas?
- law of conservation of energy
- total amount in universe never changes
- characteristics to identify substance (10)
- state, color, texture, luster, crystal structure, odor, solubility, freezing or melting point, boiling point, and density.
- crystal structure
- solid form crystals? shape?
- texture
- solid, smooth, rough
- density
- mass of volume of substance
- chemical properties
- can be observed only when substances interact with each other
- ex of chem changes (4)
- chem reactions, burning, digestion, fermentation
- ex. of chem property REACTIVITY...
- with acid or burning in presence of oxygen
- ex of phys change (7)
- dissolving, boiling, tearing, pulling, malleability, ductility, sectility
- kinetic
- energy due to motion
- ductility
- made into wire
- solubility
- how much dissolves in water? how much in other substances?
- some physical properties are extensive
- depend on amount of matter present
- freezing melting point?
- temperature does liquid to solid?
- malleability
- pound to a sheet
- some physical properties are intensive... they are
- melting point, color, density, and texture
- energy causes
- physical and chemical changes
- 5 ways to tell chem change
- heat, light, precipitate, new product (color change), gas
- state
- solid, liquid, gas
- matter is described by
- properties
- exothermic
- energy released, hot, pc
- matter changed by
- energy
- matter has
- mass and volume
- color
- color, colorless
- properties can be
- physical or chemical
- ex. of physical properties
- color, texture, shape, length, and mass