1. On Target? Do this on your Warm Up worksheet!
PLEASE put today’s date (3/21/17) in the TUESDAY box of your warm up! What is ocean acidification?

2. For today Warmup Ocean Acidification Balancing chemical equations
Objective: I can explain how carbon moves between water and the atmosphere by observing and discussing this process.

3. OCEAN ACIDIFICATION Ocean water absorbs CO2 and increases the acidity.
WHAT PROBLEMS COULD THIS CAUSE?

5. Add the CO2 absorption and outgassing to your diagram

6. Add the CO2 absorption and outgassing to your diagram

7. WHAT IS THE CHEMISTRY FOR THE CHANGING pH?
What is an ion?
Acids have more H+ ions in solution!

8. Step #1: Every day, the ocean absorbs nearly a third of the carbon dioxide we put into the atmosphere from burning fossil fuels, driving cars, and clearing forests.
Step #2: When carbon dioxide dissolves into seawater it forms carbonic acid, and lowers the pH of seawater, making it more acidic.
Carbon dioxide (CO2) + water (H2O) carbonic acid  Hydrogen ions (H+) + bicarbonate ions (HCO31-)
Step #3: Rising acidity depletes seawater of carbonate ions, an essential ingredient used by creatures like shellfish and corals to build their shells.
Hydrogen ions (H+) + carbonate ions (CO32-)  bicarbonate ions (HCO31-)

9. Chemical equations CO2 + H2O  H2CO3
Carbon Dioxide + water  Carbonic acid
Is this equation balanced or unbalanced?
BALANCED! 
CO2 + H2O  H+ + HCO3 -1
What is different about this equation?
IONS!

10. Balance in your lab notebook!
a. __ HgO  ­­__Hg + __O2
_2 HgO  ­­ 2 Hg + 1 O2
b. __ Fe + __ O2  __ Fe2O3
_4 Fe + _3 O2  Fe2O3

11. ON A SEPARATE SHEET OF PAPER: Balance the following chemical equations!
__ KClO3  __ KCl + __ O2
_2 KClO3  _2 KCl + _3 O2
__ Ca(OH)2 + __ H2SO4  __HOH + __ CaSO4
_1 Ca(OH)2 + _1 H2SO4  _2 HOH + _1 CaSO4
__ Cu + __ AgNO3  __ Cu(NO3)2 + __ Ag
_1 Cu + _2 AgNO3  _1 Cu(NO3)2 + _2 Ag
__ C2H6 + __O2  __ CO2 + __H2O
_2 C2H6 + _7 O2  _4 CO2 + _6 H2O