Ciara believes that whenever the Moon is in the position that is shown from above (top view) in Diagram A, the Moon always looks completely dark in the view from Earth, as shown in Diagram B. Is Ciara correct? If she is correct, explain why the Moon always looks dark from Earth in that position, and explain how she should show light on the Moon in Diagram A. If she is incorrect, explain how else the Moon can look when it is in that position.

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.