Substances Flashcards
physical properties of substances are _______ that changed without modifying the identify of the substance
observable characteristics
state of matter is and example of? three examples
physical property
liquid solid gas
boiling point
a temperature at which a substance boils changing its states from a liquid to a gas. it is a constant
specific heat capacity
is a measure of the amount of energy needed to change the temperature of 1 gram of a substance by 1 Celsius
intensive properties
physical properties that are independent of the amount of substance present
luster, conductivity, malleability and density are other ______ of substances
intensive properties
extensive properties
characteristics of a substance that depend on the size of a sample for example length volume and mass
mass per volume
density (takes both size and mass into account
chemical properties
are function of the chemical reactivity of the substance
the change in composition of a substance incorporates the _________ or _____ of bonds
breaking or creation
once bound together to form water the compound has ____ properties that are different form its atomic components
intensive
hydrogen bond
a type of non covalent bond; a weak attraction between a hydrogen atom bound to an electronegative atom and a second highly electronegative atom; hydrogen bonds form between two oppositely partial charged regions on two different molecules
covalent bonds form between atoms that have valence shells of similar or same valance shell ________
fullness
diffusion is
the passive movement of a substance from areas of high concentration to low concentration
ions are ____to pass through lipid bilayer of cell membrane
unable
