CHEM 101 FINAL EXAM QUESTIONS WITH
CORRECT ANSWERS
Ionic Compound - CORRECT ANSWER -
a compound composed of positive and negative ions that are combined so that the numbers of
positive and negative charges are equal
Covalent Compound - CORRECT ANSWER -
a chemical compound formed by the sharing of electrons
The Ideal Gas Law - CORRECT ANSWER -PV = nRT.
Tells you how a gas responds to a change in its physical conditions. change P, V or T, and the oth
ers adjust
Stoichiometry - CORRECT ANSWER -
that portion of chemistry dealing with numerical relationships in chemical reactions; the calcula
tion of quantities of substances involved in chemical equations
Electrolytes - CORRECT ANSWER -
chemical substances that develop an electric charge and are able to conduct an electric current
when placed in water; ions
Strong Acids - CORRECT ANSWER -HCl, HBr, HI, HNO3, HClO4, H2SO4
Dissociates completely in water
WeakBAcids - CORRECT ANSWER -HF, HCN, HC2H3O2, H2S, H2CO3, HClO
Doesn't dissociate completely in water
, Net Ionic Equation - CORRECT ANSWER -
an equation for a reaction in solution showing only those particles that are directly involved in t
he chemical change
Spectator Ions - CORRECT ANSWER -
ions that do not take part in a chemical reaction and are found in solution both before and after
the reaction
Acid - CORRECT ANSWER -
a substance that increases the hydrogen ion concentration of a solution
Base - CORRECT ANSWER -eat protons
consume H+ ions when fin water
metal hydroxides are the most common
1st Law of Thermodynamics - CORRECT ANSWER -
The principle of conservation of energy. Energy can be transferred and transformed, but it cann
ot be created or destroyed.
2nd Law of Thermodynamics - CORRECT ANSWER -entropy of the universe is always increasing
Kinetic Energy - CORRECT ANSWER -energy of motion
Potential Energy - CORRECT ANSWER -energy stored due to an object's position or arrangement
Enthalpy - CORRECT ANSWER -
the amount of thermal energy emitted or absorbed by a chemical reaction, under conditions of
constant pressure
CORRECT ANSWERS
Ionic Compound - CORRECT ANSWER -
a compound composed of positive and negative ions that are combined so that the numbers of
positive and negative charges are equal
Covalent Compound - CORRECT ANSWER -
a chemical compound formed by the sharing of electrons
The Ideal Gas Law - CORRECT ANSWER -PV = nRT.
Tells you how a gas responds to a change in its physical conditions. change P, V or T, and the oth
ers adjust
Stoichiometry - CORRECT ANSWER -
that portion of chemistry dealing with numerical relationships in chemical reactions; the calcula
tion of quantities of substances involved in chemical equations
Electrolytes - CORRECT ANSWER -
chemical substances that develop an electric charge and are able to conduct an electric current
when placed in water; ions
Strong Acids - CORRECT ANSWER -HCl, HBr, HI, HNO3, HClO4, H2SO4
Dissociates completely in water
WeakBAcids - CORRECT ANSWER -HF, HCN, HC2H3O2, H2S, H2CO3, HClO
Doesn't dissociate completely in water
, Net Ionic Equation - CORRECT ANSWER -
an equation for a reaction in solution showing only those particles that are directly involved in t
he chemical change
Spectator Ions - CORRECT ANSWER -
ions that do not take part in a chemical reaction and are found in solution both before and after
the reaction
Acid - CORRECT ANSWER -
a substance that increases the hydrogen ion concentration of a solution
Base - CORRECT ANSWER -eat protons
consume H+ ions when fin water
metal hydroxides are the most common
1st Law of Thermodynamics - CORRECT ANSWER -
The principle of conservation of energy. Energy can be transferred and transformed, but it cann
ot be created or destroyed.
2nd Law of Thermodynamics - CORRECT ANSWER -entropy of the universe is always increasing
Kinetic Energy - CORRECT ANSWER -energy of motion
Potential Energy - CORRECT ANSWER -energy stored due to an object's position or arrangement
Enthalpy - CORRECT ANSWER -
the amount of thermal energy emitted or absorbed by a chemical reaction, under conditions of
constant pressure
