Waves-Wavelength, Frequency and Energy C=20 and Erhv
C= 3.0X108m/sec and h=6.626x10-34j. sec
1. A ray of visible light has a wavelength of 698 nm. (1m = 109nm)
a. What is the wavelength in meters?
b. Calculate the frequency.
c. Calculate the energy.
12TT
TI

what does the table look like

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

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