PORTAGE CHEMISTRY 219 EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
How could you explain what makes two compound constitutional isomers of
eachother? - ANSWERS-First you would find their molecular formula. Then you
would find key differences between their connectivity. I.E. this four carbon
chain has one C-H in the middle.
Would constitutional isomers have different molecular formulas? - ANSWERS-
No. If you get this on a test just write out the molecular formula.
These have the carbon atoms bonded one after another. - ANSWERS-
Continuous chain.
These have smaller chains of carbon that sprout from the continuous chain. -
ANSWERS-Branched chains.
, What is catenation? - ANSWERS-The ability to form bonds between atoms of the
same element. Carbon is very good at this.
What is the valence of an atom? - ANSWERS-The number of bonds an atom will
form to fill its valence (outermost) shell.
For main group elements, the valence shell is composed of how many electrons?
- ANSWERS-8
Which atom doesn't follow the octet rule? - ANSWERS-H, it needs 2 to fill its
valence electrons
The group number indicates? - ANSWERS-number of valence electrons
Find the lone pair, the unpaired electrons and the bonds of Carbon. - ANSWERS-
0, 4, 4
The atom that loses electrons and becomes positively charged is? - ANSWERS-
Cation
The atom that gains the electrons and become negatively charged is? -
ANSWERS-Anion
What chemical species possesses a non-zero charge? - ANSWERS-Ion
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
How could you explain what makes two compound constitutional isomers of
eachother? - ANSWERS-First you would find their molecular formula. Then you
would find key differences between their connectivity. I.E. this four carbon
chain has one C-H in the middle.
Would constitutional isomers have different molecular formulas? - ANSWERS-
No. If you get this on a test just write out the molecular formula.
These have the carbon atoms bonded one after another. - ANSWERS-
Continuous chain.
These have smaller chains of carbon that sprout from the continuous chain. -
ANSWERS-Branched chains.
, What is catenation? - ANSWERS-The ability to form bonds between atoms of the
same element. Carbon is very good at this.
What is the valence of an atom? - ANSWERS-The number of bonds an atom will
form to fill its valence (outermost) shell.
For main group elements, the valence shell is composed of how many electrons?
- ANSWERS-8
Which atom doesn't follow the octet rule? - ANSWERS-H, it needs 2 to fill its
valence electrons
The group number indicates? - ANSWERS-number of valence electrons
Find the lone pair, the unpaired electrons and the bonds of Carbon. - ANSWERS-
0, 4, 4
The atom that loses electrons and becomes positively charged is? - ANSWERS-
Cation
The atom that gains the electrons and become negatively charged is? -
ANSWERS-Anion
What chemical species possesses a non-zero charge? - ANSWERS-Ion
