Physical And Chemical Change Flashcards
1
Q
Physical change
A
State of substance changes
2
Q
Chemical change
A
Properties of substance change
3
Q
Decomposition reaction
A
AB -> A + B
4
Q
Synthesis reaction
A
A + B -> AB
5
Q
Exothermic reaction
A
Energy released into environment
Energy released > energy needed to break attraction force
6
Q
Endothermic reaction
A
Energy absorbed from environment
Energy released < energy needed to break attraction force
7
Q
Allotrope
A
Same element occurs in different crystal forms and has different physical properties
