CHEM 1205 FINAL PRACTICE SCRIPT UPDATED 2026 TESTED SOLUTIONS, Exams of Biochemistry

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