CHEM 1205 FINAL PRACTICE SCRIPT UPDATED 2026
TESTED SOLUTIONS, Exams of Biochemistry
Water freezes at - ANSWER32 F and 0 C
Water boils at - ANSWER100 degrees Celsius or 212 degrees Fahrenheit
solid - ANSWERDefinite shape and volume, particles close together, arranged
in a 3-D array
liquid - ANSWERdefinite volume but no definite shape, particles close
together but can randomly move around
Gas - ANSWERNo definite shape or volume, move randomly and are
separated by large distances, expand to fill container
physical change - ANSWERalters a substance without changing its
composition
chemical property - ANSWERdetermines how a substance can be converted
into another substance
chemical change - ANSWERconverts one material to another
, pure substance - ANSWERcomposed of a single substance and has a constant
composition
Mixture - ANSWERA combination of two or more substances that are not
chemically combined
Compound - ANSWERA substance made up of atoms of two or more different
elements joined by chemical bonds
Density - ANSWERphysical property that relates the mass of a substance to its
volume
specific gravity - ANSWERquantity that compares the density of a substance
with the density of water at 4 degrees Celsius
Element - ANSWERA pure substance that cannot be broken down into other
substances by chemical or physical means
Nonmetals - ANSWERpoor conductors of heat and electric current
Metals - ANSWERgood conductors of heat and electric current, ductile,
malleable
Metalloids - ANSWERelements with properties that fall between those of
metals and nonmetals
metals are ______________ at room temp - ANSWERsolid
TESTED SOLUTIONS, Exams of Biochemistry
Water freezes at - ANSWER32 F and 0 C
Water boils at - ANSWER100 degrees Celsius or 212 degrees Fahrenheit
solid - ANSWERDefinite shape and volume, particles close together, arranged
in a 3-D array
liquid - ANSWERdefinite volume but no definite shape, particles close
together but can randomly move around
Gas - ANSWERNo definite shape or volume, move randomly and are
separated by large distances, expand to fill container
physical change - ANSWERalters a substance without changing its
composition
chemical property - ANSWERdetermines how a substance can be converted
into another substance
chemical change - ANSWERconverts one material to another
, pure substance - ANSWERcomposed of a single substance and has a constant
composition
Mixture - ANSWERA combination of two or more substances that are not
chemically combined
Compound - ANSWERA substance made up of atoms of two or more different
elements joined by chemical bonds
Density - ANSWERphysical property that relates the mass of a substance to its
volume
specific gravity - ANSWERquantity that compares the density of a substance
with the density of water at 4 degrees Celsius
Element - ANSWERA pure substance that cannot be broken down into other
substances by chemical or physical means
Nonmetals - ANSWERpoor conductors of heat and electric current
Metals - ANSWERgood conductors of heat and electric current, ductile,
malleable
Metalloids - ANSWERelements with properties that fall between those of
metals and nonmetals
metals are ______________ at room temp - ANSWERsolid
