Chemical Reactions and Energy Flashcards
1
Q
Where is chemical energy stored?
A
In the bonds between atoms in molecules and atoms
2
Q
What is a chemical change reaction?
A
They involve the breaking of bonds between the atoms in a molecule of compound
Changes the arrangement of the bonds
3
Q
What are physical change processes?
A
Melting or boiling
Disrupt the intermolecular forces attracting the molecules to each other - does not break bonds
4
Q
When is energy added or removed?
A
Energy is added for solid->liquid and liquid->gas
Energy is removed for liquid -> solid and gas->liquid
