Longitudinal waves compress the medium they travel though. one example of a longitudinal wave is a

a)
sound wave.

b)
ocean wave.

c)
infrared wave.
eliminate

d)
ultraviolet wave.

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.

At element makes up all organic compounds?

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?