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Flashcards in Physical And Chemical Change Deck (7)
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1

Physical change

State of substance changes

2

Chemical change

Properties of substance change

3

Decomposition reaction

AB -> A + B

4

Synthesis reaction

A + B -> AB

5

Exothermic reaction

Energy released into environment
Energy released > energy needed to break attraction force

6

Endothermic reaction

Energy absorbed from environment
Energy released < energy needed to break attraction force

7

Allotrope

Same element occurs in different crystal forms and has different physical properties