Bonds break and form during chemical reactions.

1
(No Transcript)
2

• Bonds break and form during chemical reactions.

• Chemical reactions change substances into
  different ones by breaking and forming chemical
  bonds.
• Reactants are changed during a chemical reaction.

• Products are made by a chemical reaction.

6CO2 6H2O C6H12O6 6O2
3

• Bond energy is the amount of energy that breaks a
  bond.

• Energy is added to break bonds.
• Energy is released when bonds form.

• A reaction is at equilibrium when reactants and
  products form at the same rate.

CO2 H2O H2CO3
4
(No Transcript)
5
(No Transcript)
6
(No Transcript)
7

• Real endothermic and exothermic
  reactionshttp//www.classzone.com/cz/books/bio_0
  7/resources/htmls/animated_biology/unit1/bio_ch02_
  0052_ab_exoendo.html

• Endothermic Reaction Example and Observations
• Exothermic Reaction Example and Observations
• Reflection (Are these two types of reactions
  more similar or different? Explain please.)