Bonds and Energy

Bonds and Energy - Understanding Chemical Reactions...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
    Understanding  Understanding  Chemical  Chemical  Reactions Reactions Lesson: Bonds & Energy
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Basic Revision Basic Revision For a chemical reaction to occur, bonds  must be both formed and broken Fe  +  CuSO 4                Cu    +  FeSO 4
Background image of page 2
Basic Revision Basic Revision Chemical reactions always involve energy  changes. Making and breaking bonds involves  energy changes
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
ENERGY AND CHEMICAL  ENERGY AND CHEMICAL  REACTIONS REACTIONS Exothermic reactions These reactions give out heat energy. Combustion is an exothermic reaction.
Background image of page 4
ENERGY AND CHEMICAL  ENERGY AND CHEMICAL  REACTIONS REACTIONS Endothermic reactions These reactions take in heat energy from  their surroundings. These cause temperatures to fall.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
ENERGY AND CHEMICAL  REACTIONS REACTIONS Use the apparatus as  shown. Work with 20ml of 
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/09/2011 for the course CHEM 201 taught by Professor Peterson during the Fall '11 term at BYU.

Page1 / 20

Bonds and Energy - Understanding Chemical Reactions...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online