Reviewing Physical Properties and Changes Physical Properties can

Reviewing Physical Properties and Changes

Physical Properties can be observed without changing the substance

color odor freezing point brittlenes e r u t x te s y malleability t i s n de d u c t ility r e t s u l state of matter boiling point taste conductivit y s e n melting point d r a h

A physical change occurs when the appearance of a substance changes, but chemically the substance is the

n o i t a r evapo ) s a g o t d i u q (li Molding a clay ball d i u q i l ( g n i dissol z e e r f ving ) d i l o s to tearing melting (solid to boiling water e p a h s Size / e g n a h c

Chemical Properties

describe the potential of substances to undergo chemical changes…

which depends on how easily it will lose or gain electrons

You can’t actually tell what chemical properties a substance has unless it goes through a chemical change or reaction…

Chemical Changes

Chemical Change occurs when a chemical reaction

The substances created during a chemical reaction are completely different from the original substances!!

The object becomes a whole new material… with NEW and DIFFERENT properties

EXAM Rusting S: PLE Burning Cooking

1. A solid precipitate forms 5 INDICATOR S OF A CHEMICAL REACTION: Liquid B Liquid A

t h g i l r o 2. Heat d e c u d o is pr

d e b r o s b a t a e H. 3

4. Gas is produce d

5. Color change occurs