And Already Passed Answers (2025-
2026) Updated.
mass - Answer the amount of matter in an object
volume - Answer the amount of space occupied by an object
extensive property - Answer a property that depends on the amount of matter in a sample
intensive property - Answer a property that depends on the type of matter in a sample, not
the amount of matter
substance - Answer Matter that has a uniform and definite composition
physical property - Answer a quality or condition of a substance that can be observed or
measured without changing the substance's composition
solid - Answer of definite shape and volume
liquid - Answer a substance in the fluid state of matter having no fixed shape but a fixed
volume
gas - Answer the state of matter distinguished from the solid and liquid states by: relatively
low density and viscosity
vapor - Answer matter that exists in the gas state but is generally a liquid or solid at room
temperature
Physical change - Answer a change from one state (solid or liquid or gas) to another without a
change in chemical composition
mixtures - Answer a physical combination of substances that can still be seperated
, homogeneous mixture - Answer a mixture in which the composition is uniform throughout
solution - Answer a homogeneous mixture of two or more substances
phase - Answer (physical chemistry) a distinct state of matter in a system
filtration - Answer the process that separates a solid from the liquid in a heterogeneous
mixture
distillation - Answer the process of purifying a liquid by boiling it and condensing its vapors
element - Answer any of the more than 100 known substances (of which 92 occur naturally)
that cannot be separated into simpler substances and that singly or in combination constitute
all matter
compound - Answer a substance made up of atoms of two or more different elements joined
by chemical bonds
chemical change - Answer a change that produces matter with a different composition than
the original matter
chemical symbol - Answer a one or two letter representation of an element
chemical property - Answer the ability of a substance to undergo a specific chemical change
chemical reaction - Answer the process by which one or more substances change to produce
one or more different substances
reactant - Answer a chemical substance that is present at the start of a chemical reaction
product - Answer a chemical substance formed as a result of a chemical reaction
precipitate - Answer A solid that forms and settles out of a liquid mixture