Trent Science 4
characteristic that can be observed without changing the composition of a substance
includes things that can be observed with the senses
describes the way some substances behave
temperature at which a solid can change to a liquid
temperature at which a ___ substance melts is unchanging under constant conditions
how can the melting point of a pure substance be used for identification?
as a physical property
at what temperature does ice melt to form liquid water?
0 degrees C (32 degrees F)
temperature at which a liquid boils
during the process of boiling, substances changes from ___ to ___
begins when the liquid starts to form bubbles throughout, which grow larger, rise to the surface, and burst
as long as the substance is boiling, temperature of the liquid remains ___
boiling point is unchanging under constant conditions for a given substance and can be used as ___ for identification of the substance
boiling point for pure water at sea level
100 C (212 F)
measurements that can describe physical properties
property that describes the relationship between mass of material and its volume
substances that are denser contain more matter in a given ___
what will the density of a substance do no matter how large or small the sample of the substance?
stay the same
is color by itself a significant identifier of a substance?
is absence of color a physical property?
characteristic that cannot be observed without altering the substance
chemical properties that can be used to help identify a substance
ability to burn
tendency to rust
reaction to other substances such as acids
Trent Science 4
physical and chemical properties