Q- Which two positions show the location of the moon in its gibbous phases as seen from Earth?
A) 2 and 4
B) 2 and 8
C) 4 and 6
D) 6 and 8

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.