CEM 141 MSU EXAM 3 CERTIFICATION EVALUATION TEST PAPER 2026 QUESTIONS AND SOLUTIONS GRADED A+

CEM 141 MSU EXAM 3 CERTIFICATION
EVALUATION TEST PAPER 2026
QUESTIONS AND SOLUTIONS GRADED A+

●● what's the symbol for bonding molecular orbital?.
Answer: sigma


●● what's the symbol for anti-bonding molecular orbital?.
Answer: sigma*


●● how do e- in a bonding molecular orbital interact?.
Answer: e-s interact constructively/in phase


●● how do e- in an anti-bonding molecular orbital interact?.
Answer: e-s interact deconstructively/out of phase


●● how much energy do bonding molecular orbitals have?.
Answer: lower energy than atomic orbitals


●● how much energy do anti-bonding molecular orbitals have?.
Answer: higher energy than atomic orbitals

, ●● are bonding molecular orbitals stabilizing or destabilizing?.
Answer: stabilizing


●● are anti-bonding molecular orbitals stabilizing or destabilizing?.
Answer: destabilizing


●● are bonding molecular orbitals 1st or 2nd?.
Answer: 1st


●● are anti-bonding molecular orbitals 1st or 2nd?.
Answer: 2nd


●● if you combine 2 atoms with 10 atomic orbitals each, how many
molecular orbitals will results?.
Answer: 20


●● if there's unpaired electrons in a molecular orbital theory diagram,
what happens to the substance magnetic-wise?.
Answer: it's magnetic - paramagnetic


●● if there's only paired electrons in a molecular orbital theory diagram,
what happens to the substance magnetic-wise?.