WorksheetsHChem 1st Semester Exam Review - 6
Total questions: 10
Worksheet time: 33mins
Na (s) + H2O (l) →
What are the products?
NaOH (aq) + H2 (g)
Na2O (aq) + H2 (g)
NaH (aq) and O2 (g)
No Reaction
For each of the following sublevels, which is lowest in energy?
4s
3d
4p
5s
The higher the ionization energy...
the more attracted the valence electron is to the nucleus so it is harder to remove
the less attracted the valence electron is to the nucleus so it is easier to remove
the more attracted the valence electron is to another electron, so it is harder to remove
the more repelled a valence electron is to another electron, so it is easier to remove
Why does ionization energy decrease going down a group?
Adding more energy levels makes the ve- further from the nucleus so it is easier to remove
There are more valence electrons in the outer shell so the ve- is easier to remove
There are more protons in the nucleus so the ve- is easier to remove
There are less protons in the nucleus so the ve- is easier to remove
P, Cs, Co, Sr
A beam of light has a wavelength of 600 nm in air. What is the frequency of the light (c = 3x108 m/s)?
5 x 1014 Hz
2 x 1014 Hz
3 x 1014 Hz
6 x 1014 Hz
A beam of light is traveling for 0.250 seconds. How far did it go?
7.50 × 107 m
5.60 × 107 m
1.20 × 109 m
1.35 × 109 m
What is the energy of a photon whose frequency is 4.9 x 1015 Hz ?
Convert 6570. cm to km
