CHEM 121 UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS

CHEM 121 UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS
CHEM 121 Final EXAM Questions and Answers
Verified Solutions Latest Update 2026/2027

Question:
molar mass is the mass of.

Answer:
6.022e23 molecules or 1 mole



Question:
exothermic reaction.

Answer:
gas -> liquid -> solid



Question:
endothermic reaction.

Answer:
solid -> liquid -> gas



Question:
ionization energy trend.

Answer:




Question:
photoelectric effect.

Answer:

, certain metals emit electrons when illuminated by particular wavelengths of light



Question:
2 hybrid orbitals.

Answer:
linear (sp)



Question:
3 hybrid orbitals.

Answer:
trigonal planar (sp2)



Question:
4 hybrid orbitals.

Answer:
tetrahedral (sp3)



Question:
5 hybrid orbitals.

Answer:
trigonal bipyramidal (sp3d)



Question:
6 hybrid orbitals.

Answer:
octahedral (sp3d2)