PORTAGE CHEM 219 MODULE 1 EXAM QUESTIONS AND CORRECT ANSWERS LATEST UPDATE 2026/2027 .

1. What is organic chemistry ANSW Branch of chemistry that studies the structure, properties, composition, reaction and synthesis of organic compounds which contain carbon atoms. 2. Catenation: Ability of ab element to form bonds with itself, resulting in formation of chains, rings or complex structures. Allows for vats diversity of organic compounds in terms of reactivity and properties 3. The properties & reactivity of an organic molecule are controlled by its: com-position & shape 4. Why do atoms form bonds to other atoms ANSW Energetic stability 5. To say an atom is energetically stable means that the overall energy of the atom is: lower when in the bonded state than in a non bonded state 6. T/F Lower energy typically means greater stability? Why ANSW True b/c the electron configuration of the atom - atomic valence 7. Valence ANSW # of bonds an atom will form to fill its valve (outermost) shell. The atom achieves stability from a full valence shell, as there is no desire to make bonds 8. Knowing the valence of an atom is important because it indicates ... ANSW How many bonds a given atom will typically form when it combines with other elements to make a molecule 9. What do you look at to figure out how many bonds an element will form ANSW LDD Comes from group number 10. Unpaired electrons ANSW