STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Physical Property - correct answer Color, melting point, boiling point
Observed and measured without changing identity of substance
Chemical Property - correct answer Observed by performing a chemical change
Mixture - correct answer Combination of 2+ elements, each retains its identity and
properties
Can be separated by physical means into pure components without changing identity
of compounds
Pure Substance - correct answer fixed composition and differs from a mixture (every
sample has same properties and composition)
Polyatomic Ion - correct answer molecule with a charge
contain more than 1 atom chemically bonded together
ions - correct answer atoms with charge formed by loss or gain of an electron
Cation - correct answer positive ion, may have roman numeral
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Anion - correct answer negative ion, element ends in -ide
isotope - correct answer atom of an element that has a different mass because of a
different number of neutrons, but same atomic number
Atomic Number - correct answer total number of protons in an atom; also indicates
number of electrons
Catalyst - correct answer additional reactant that increases the rate of a reaction with
a lower activation energy
What 4 factors impact the rate of a reaction?
- correct answer
Surface area
Concentration
Temperature
Catalyst
exothermic reaction - correct answer A reaction that RELEASES energy in the form of
heat
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
endothermic reaction - correct answer A reaction that ABSORBS energy in the form of
heat
6.022 x 10^23 particles - correct answer How many particles/atoms/molecules are in
a mole?
Amount of area exposed for the reaction of a solid - correct answer Surface area
impacts rate of reaction how?
increase the # of reactants in the container, more collisions occur w/enough energy &
proper orientation - correct answer Concentration impacts rate of reaction how?
Higher temperature....more motion....more forceful or higher energy collisions -
correct answer Temperature impacts rate of reaction how?
Boyle's Law - correct answer pressure increases, volume decreases
pV = constant or p1V1 = p2V2
Charles' Law - correct answer Volume goes up, then temperature goes up, pressure
remains the same
, STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
V/T = constant or V1/T1 = V2/T2
Avogadro's Law - correct answer volume increases with number increases
v/n
Guy-Lussac's Law - correct answer increase in temperature & increase in pressure
p/T = constant or p1/T1 = p2/T2
Ideal Gas Law - correct answer PV = nRT
when 3 variables are given in an question - correct answer When do you use the Ideal
gas law?
- reacting particles must collide
- collisions have proper orientation
- particles must have a strong enough energy to collide - correct answer Name three
ways reactions occur?
Mass Number - correct answer total number of neutrons and protons in an atom; #
protons + # electrons
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Physical Property - correct answer Color, melting point, boiling point
Observed and measured without changing identity of substance
Chemical Property - correct answer Observed by performing a chemical change
Mixture - correct answer Combination of 2+ elements, each retains its identity and
properties
Can be separated by physical means into pure components without changing identity
of compounds
Pure Substance - correct answer fixed composition and differs from a mixture (every
sample has same properties and composition)
Polyatomic Ion - correct answer molecule with a charge
contain more than 1 atom chemically bonded together
ions - correct answer atoms with charge formed by loss or gain of an electron
Cation - correct answer positive ion, may have roman numeral
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Anion - correct answer negative ion, element ends in -ide
isotope - correct answer atom of an element that has a different mass because of a
different number of neutrons, but same atomic number
Atomic Number - correct answer total number of protons in an atom; also indicates
number of electrons
Catalyst - correct answer additional reactant that increases the rate of a reaction with
a lower activation energy
What 4 factors impact the rate of a reaction?
- correct answer
Surface area
Concentration
Temperature
Catalyst
exothermic reaction - correct answer A reaction that RELEASES energy in the form of
heat
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
endothermic reaction - correct answer A reaction that ABSORBS energy in the form of
heat
6.022 x 10^23 particles - correct answer How many particles/atoms/molecules are in
a mole?
Amount of area exposed for the reaction of a solid - correct answer Surface area
impacts rate of reaction how?
increase the # of reactants in the container, more collisions occur w/enough energy &
proper orientation - correct answer Concentration impacts rate of reaction how?
Higher temperature....more motion....more forceful or higher energy collisions -
correct answer Temperature impacts rate of reaction how?
Boyle's Law - correct answer pressure increases, volume decreases
pV = constant or p1V1 = p2V2
Charles' Law - correct answer Volume goes up, then temperature goes up, pressure
remains the same
, STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
V/T = constant or V1/T1 = V2/T2
Avogadro's Law - correct answer volume increases with number increases
v/n
Guy-Lussac's Law - correct answer increase in temperature & increase in pressure
p/T = constant or p1/T1 = p2/T2
Ideal Gas Law - correct answer PV = nRT
when 3 variables are given in an question - correct answer When do you use the Ideal
gas law?
- reacting particles must collide
- collisions have proper orientation
- particles must have a strong enough energy to collide - correct answer Name three
ways reactions occur?
Mass Number - correct answer total number of neutrons and protons in an atom; #
protons + # electrons
