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chem module 4 test questions and answers verified answers||Latest 2024/2025
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chem module 4 test questions and answers verified answers||Latest 2024/2025
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chem module 4 testelement, compound, heterogeneous mixture, homogeneous mixture - ANSname the four
classifications of matter.
chemical, physical - ANSname the classifications for the changes that matter undergoes.
mixtures separated by physical means, pure substances separated by chemical means -
ANSname the difference between a pure substance and a mixture.
physically separated, chemically separated - ANSmixtures can be _______ ________ into their
individual components while pure substances must be _______ ________ before their
individual components can be physically separated
homo is same throughout, hetero is different throughout - ANSname the difference between
heterogeneous mixtures and homogeneous mixtures.
practice prob #2 mod 4 - ANSwhat practice prob should u do to study the classification scheme?
composed of a number of different gases - ANShow is the air around us a mixture?
study the worksheet - ANShow should you study for classifying matter as a element, compound,
homogeneous mixture or heterogenous mixture?
solid: slow movement, closer together
liquid: more/faster movement, farther apart
gas: fastest movement, furthest apart - ANSname the difference between solid, liquid and gas
phases (what is happening in the molecules?)
solid:
liquid:
gas:
melting: adding heat
freezing: taking away heat/energy - ANSwhat is happening at each phase change?
melting:
freezing:
molecules and atoms are in constant motion, and the higher the temperature, the greater the
speed - ANSstate the Kinetic Theory of Matter.
practice prob #3 mod 4 - ANSwhat practice prob should u do to study classifying various
examples as physical or chemical changes?
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