Chemistry: Exothermic and Endothermic Reactions and Changes of State

Exothermic Reaction: 

• During the reaction a red glow is seen. 
• This means that heat is being given out. 
• Chemical energy ===> thermal energy. 

Endothermic Reaction: 

• a reaction that takes in heat.
• Feels cold, drop in temperature. 
• Thermal energy ===> chemical energy. 

Changes…