Describe the blood hydrogen carbonate buffer system. What happens when blood acidity rises? Show

Describe the blood hydrogen carbonate buffer system. What happens when blood acidity rises? Show the equation.
What happens when the blood becomes more alkaline? Show the equation.
Distinguish between strong and weak acid. List some clinical uses of these acids and write equations for their dissociation in water.
Did you find any of these to be a challenge? Why or why not?