CHEM 103 LAB 2 CHEMICAL REACTION
ACTUAL PAPER 2026 FULL SOLUTION
QUESTIONS AND ANSWERS VERIFIED
◉ octet rule. Answer: EVERY ATOM WANTS 8 ELECTRONS IN THEIR
OUTERSHELL
◉ ionic bonding. Answer: chemical bond formed through the
transfer of one or more electrons from one atom or group of atoms
to another group
EX : NaBr
◉ metals. Answer: give
◉ nonmetals. Answer: take
◉ oxidation number. Answer: the superscript indicating the charge
on an ion
◉ ion. Answer: atom with either positive or negative charge
,◉ binary compound. Answer: compounds in which 2 elements are
present , metal and non metal - nonmetal changes to ide
◉ ionization energy. Answer: energy required to remove the most
loosley held electron from outer shell ; up and to the right
◉ polyatomic molecule. Answer: nonmetals that form one ion
◉ covalent bond. Answer: sharing of electrons
EX : CO2
◉ polyatomic ions. Answer: Ag silver ion
Fe 2+ ferrous ion
Fe 3+ ferric ion
Cu 1+ cuprous ion
Cu 2+ cupric ion
◉ binary molecule. Answer: 1st word : prefix and full name
2nd word : prefix and stem and ide
◉ mono. Answer: 1
,◉ di. Answer: 2
◉ tri. Answer: 3
◉ tetra. Answer: 4
◉ penta. Answer: 5
◉ hexa. Answer: 6
◉ hepta. Answer: 7
◉ octa. Answer: 8
◉ ennea. Answer: 9
◉ deca. Answer: 10
◉ bonding electrons. Answer: pairs of valence electrons that are
shared between pairs
, ◉ non bonding electrons. Answer: lone pairs that
are not involved in electron sharing
◉ Linus Pauling. Answer: Nobel prize Chemist
◉ electronegativity. Answer: measure of atoms attraction for
electrons it shares with another atom in a chemical bond
◉ electronegativity increases. Answer: left to right
◉ electronegativity decreases. Answer: top to bottom
◉ repulsion. Answer: gives molecule shape, describes distance b/w
bonding and non bonding pairs of electrons
◉ molecular geometry. Answer: 3 dimensional arrangement of atom
within a molecule
◉ VSEPR. Answer: valence shell electron pair repulsion theory - set
of procedures for predicting a 3 dimensional geometry molecule
◉ NH4. Answer: ammonium with 1 superscript
ACTUAL PAPER 2026 FULL SOLUTION
QUESTIONS AND ANSWERS VERIFIED
◉ octet rule. Answer: EVERY ATOM WANTS 8 ELECTRONS IN THEIR
OUTERSHELL
◉ ionic bonding. Answer: chemical bond formed through the
transfer of one or more electrons from one atom or group of atoms
to another group
EX : NaBr
◉ metals. Answer: give
◉ nonmetals. Answer: take
◉ oxidation number. Answer: the superscript indicating the charge
on an ion
◉ ion. Answer: atom with either positive or negative charge
,◉ binary compound. Answer: compounds in which 2 elements are
present , metal and non metal - nonmetal changes to ide
◉ ionization energy. Answer: energy required to remove the most
loosley held electron from outer shell ; up and to the right
◉ polyatomic molecule. Answer: nonmetals that form one ion
◉ covalent bond. Answer: sharing of electrons
EX : CO2
◉ polyatomic ions. Answer: Ag silver ion
Fe 2+ ferrous ion
Fe 3+ ferric ion
Cu 1+ cuprous ion
Cu 2+ cupric ion
◉ binary molecule. Answer: 1st word : prefix and full name
2nd word : prefix and stem and ide
◉ mono. Answer: 1
,◉ di. Answer: 2
◉ tri. Answer: 3
◉ tetra. Answer: 4
◉ penta. Answer: 5
◉ hexa. Answer: 6
◉ hepta. Answer: 7
◉ octa. Answer: 8
◉ ennea. Answer: 9
◉ deca. Answer: 10
◉ bonding electrons. Answer: pairs of valence electrons that are
shared between pairs
, ◉ non bonding electrons. Answer: lone pairs that
are not involved in electron sharing
◉ Linus Pauling. Answer: Nobel prize Chemist
◉ electronegativity. Answer: measure of atoms attraction for
electrons it shares with another atom in a chemical bond
◉ electronegativity increases. Answer: left to right
◉ electronegativity decreases. Answer: top to bottom
◉ repulsion. Answer: gives molecule shape, describes distance b/w
bonding and non bonding pairs of electrons
◉ molecular geometry. Answer: 3 dimensional arrangement of atom
within a molecule
◉ VSEPR. Answer: valence shell electron pair repulsion theory - set
of procedures for predicting a 3 dimensional geometry molecule
◉ NH4. Answer: ammonium with 1 superscript
