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Physical vs. Chemical Changes Physical vs. Chemical Properties

Physical vs. Chemical Changes Physical vs. Chemical Properties. BLANK ON PURPOSE. Physical Changes. These changes in matter do not result in a substance with a new _______. In other words the ________ of the substance remains the same before and after the change

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Physical vs. Chemical Changes Physical vs. Chemical Properties

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  1. Physical vs. Chemical ChangesPhysical vs. Chemical Properties

  2. BLANK ON PURPOSE

  3. Physical Changes • These changes in matter do not result in a substance with a new _______. In other words the ________ of the substance remains the same before and after the change • Examples: MELT BOIL FREEZE CONDENSE SUBLIME DEPOSIT EVAPORATE CUT MIX FILTER GRIND DISSOLVE STIR DECANT CENTRIFUGE • These changes do not involve bond ________ and bond __________.

  4. Chemical Changes • These changes in matter result in a substance with a new _________. In other words the _________ of the substance is altered due to the change. • Examples: REACT ROT SPOIL DECAY RUST OXIDIZE REDUCE CORRODE BURN EXPLODE COOK CHARGE RECHARGE DECOMPOSE DIGEST RESPIRATION COMBUSTION PHOTOSYNTHESIS FERMENT • These changes do involve bond _________ and bond _________.

  5. Physical Properties • These properties of matter are observable without any accompanying _________ in identity. You need not ________ the identity of the substance to observe these properties. • Examples: COLOR MASS VOLUME LENGTH MAGNETISM TEMPERATURE HARDNESS LUSTER MALLEABILITY CONDUCTIVITY AREA WEIGHT TEXTURE DENSITY MELTING PT BOILING PT DIAMETER RADIUS HEIGHT SOLUBILITY • ___________ vs. ___________ Physical Properties

  6. Chemical Properties • These properties of matter are observable only with an accompanying ________ in identity of the substance. You must ________ the identity of the substance to observe these properties. • Examples: CORROSIVE FLAMMABLE REACTIVE EXPLOSIVE TOXIC OXIDIZER REDUCER POISONOUS CAUSTIC COMBUSTIBLE • Because these properties require a change in identity, they are usually just _________ forms of the chemical changes already mentioned.

  7. Signs of Physical Change • 1) There is no change in molecular/atomic identity. • 2) These changes are generally easily reversible.

  8. Signs of Chemical Change • 1) Formation of a ___________. • 2) Appearance of a new ___________. • 3) Energy _______________. • 4) Energy _______________. • 5) After mixing together two _______________, a ________ _______________ forms. • Generally speaking chemical changes are not easily ____________________.

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