EXAM QUESTIONS AND VERIFIED SOLUTIONS
2026
◉ Lewis structure Ethane. Answer:
◉ Lewis Structure methanol. Answer:
◉ Lewis Structure propanol. Answer:
◉ Lewis Structure ethers. Answer:
◉ Lewis Structure salicylic acid (phenol). Answer:
◉ Lewis Structure acetic acid (carboxylic acid). Answer:
◉ Lewis structure trimethylamine (amine). Answer:
◉ Types of solids. Answer: crystalline and amorphous
◉ Crystalline solids. Answer: solids that consist of crystals
, ◉ Amorphous solids. Answer: A solid made up of particles that are
not arranged in a regular pattern
◉ Le chatelier's principle. Answer: States that if a stress is applied to
a system at equilibrium, the system shifts in the direction that
relieves the stress.
◉ Chemical equilibrium example. Answer: H₂ (g) + I₂ (g) ⇌ 2HI (g)
at any given time, H₂ & I₂ are combing while 2HI is breaking down -
all three chemicals will be present.
◉ Pressure increase equilibrium shift. Answer: then the equilibrium
shifts to the side with the fewer number of moles of gas
◉ Increasing temperature equilibrium shift. Answer: endothermic -
shifts right
exothermic - shifts left
◉ concentration shift equilibrium. Answer: If we add additional
product to a system, the equilibrium will shift to the left, in order to
produce more reactants. Or, if we remove reactants from the system,
equilibrium will also be shifted to the left.