What is the ka of a weak acid (ha) if the initial concentration of weak acid is 4.5 x 10-4 m and the ph is 6.87? (pick one)
5.5 x 10-5
4.0 x 10-6
6.9 x 10-4
3.5 x 10-10
4.0 x 10-11

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

What is the relationship of air masses and the temperature of oceans?