CHEM 103 MODULE EXAM 5 2026 STUDY
GUIDE COMPLETE QUESTIONS AND ANSWERS
100% CORRECT
◉ Why don't hydrocarbons and watemix. Answer: entropu term
dominates
◉ What does ice do. Answer: minimize ice structure
◉ Van der Waals. Answer: Electron will be unevenly distributed
Side with more electrons = more negatige
Side with less electrons = more positive
If it gets too clase to another atom, it repels
Bigger molecular weight = stronger forces
◉ What intermolecular forces are involved in liquid or solid
molecule?. Answer: If it's gas, there's nointermolecular forces
◉ Molecular weight and states of matter with hydrocarbons.
Answer: Low molecular weight = gas
High molecular weight = liquids or solids with lots of interaction
,◉ Molecules of life. Answer: Fats, sugars, proteins, DNA/RNA,
vitamins, minerals
◉ Ethanol. Answer: Drink
◉ Ethylene glycol. Answer: Toxic
◉ Hangover feeling. Answer: Acealdehyde
◉ Glycerol. Answer: eat/drink
◉ How to make vinegar. Answer: ethanol-->acetaldehyde --> acetic
acid --> vinegar
◉ Fatty acids. Answer: Long chain hydrocarbon with even number of
C atoms + carboxylix acid end groups
◉ Triglyceride. Answer: Chemical combination of 3 fatty acids with
glycerol; releases 3 equivalents of water
◉ Fat. Answer: Triglyceride that is slid at room temp
◉ Oil. Answer: Triglyceride that is liquid at room temp
, ◉ _____ double bonds --> ________ triglyceride melting point. Answer:
more ; lower
◉ Saturated fat (meat). Answer: No double bonds in fatty acids,
stackable
◉ Unsaturated fat (oil). Answer: Double bond, bent chain
◉ Mascara. Answer: Caprylic acod glyceride, stearic acid, cetyl
alcohol
◉ Margarine. Answer: Al vegetable oil, whip it up so it's not liquid
◉ Essential fatty acids. Answer: You have to eat it because the body
can't produce it
◉ Palmatic acid. Answer: Single bonds
◉ Linolenic acid. Answer: 2 double bonds
◉ Oleic acid. Answer: 1 double bond
GUIDE COMPLETE QUESTIONS AND ANSWERS
100% CORRECT
◉ Why don't hydrocarbons and watemix. Answer: entropu term
dominates
◉ What does ice do. Answer: minimize ice structure
◉ Van der Waals. Answer: Electron will be unevenly distributed
Side with more electrons = more negatige
Side with less electrons = more positive
If it gets too clase to another atom, it repels
Bigger molecular weight = stronger forces
◉ What intermolecular forces are involved in liquid or solid
molecule?. Answer: If it's gas, there's nointermolecular forces
◉ Molecular weight and states of matter with hydrocarbons.
Answer: Low molecular weight = gas
High molecular weight = liquids or solids with lots of interaction
,◉ Molecules of life. Answer: Fats, sugars, proteins, DNA/RNA,
vitamins, minerals
◉ Ethanol. Answer: Drink
◉ Ethylene glycol. Answer: Toxic
◉ Hangover feeling. Answer: Acealdehyde
◉ Glycerol. Answer: eat/drink
◉ How to make vinegar. Answer: ethanol-->acetaldehyde --> acetic
acid --> vinegar
◉ Fatty acids. Answer: Long chain hydrocarbon with even number of
C atoms + carboxylix acid end groups
◉ Triglyceride. Answer: Chemical combination of 3 fatty acids with
glycerol; releases 3 equivalents of water
◉ Fat. Answer: Triglyceride that is slid at room temp
◉ Oil. Answer: Triglyceride that is liquid at room temp
, ◉ _____ double bonds --> ________ triglyceride melting point. Answer:
more ; lower
◉ Saturated fat (meat). Answer: No double bonds in fatty acids,
stackable
◉ Unsaturated fat (oil). Answer: Double bond, bent chain
◉ Mascara. Answer: Caprylic acod glyceride, stearic acid, cetyl
alcohol
◉ Margarine. Answer: Al vegetable oil, whip it up so it's not liquid
◉ Essential fatty acids. Answer: You have to eat it because the body
can't produce it
◉ Palmatic acid. Answer: Single bonds
◉ Linolenic acid. Answer: 2 double bonds
◉ Oleic acid. Answer: 1 double bond
