Aphoton has 3.4 × 10–18 joules of energy. planck’s constant is 6.63 × 10–34 j•s.

what is the frequency of the photon?

5.12 × 10–15 hz
1.95 × 1016 hz
5.12 × 1015 hz
1.95 × 10–16 hz

What is the number of atoms in 3.54 mol s

What are the two largest greenhouse gases

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°