STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
multiply the atomic mass (grams) by the number of moles - correct answer How do
you convert from moles to grams?
Divide the total number of grams by the atomic mass (grams) of 1 mole - correct
answer How do you convert from grams to moles?
Mass - correct answer measure of the amount of matter
Compound - correct answer made from atoms of 2+ elements that are chemically
bonded; cannot be separated into simpler substances by any physical process; can be
separated by a chemical reaction
Solid - correct answer Definite shape and volume
Doesn't conform to shape of container
Particles are very close together in orderly fashion with little freedom of motion
Liquid - correct answer Definite volume, indefinite shape
Conforms to shape of the part of the container it fills
Particles are close together but not rigidly in position with freedom to move past
each other
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Gas - correct answer No definite shape or volume
Conforms to shape and volume of container
Particles separated by distances very large compared to size of particles
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
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
ions - correct answer atoms with charge formed by loss or gain of an electron
Cation - correct answer positive ion, may have roman numeral
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
Surface area
Concentration
Temperature
Catalyst - correct answer What 4 factors impact the rate of a reaction?
, STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
exothermic reaction - correct answer A reaction that RELEASES energy in the form of
heat
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
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
multiply the atomic mass (grams) by the number of moles - correct answer How do
you convert from moles to grams?
Divide the total number of grams by the atomic mass (grams) of 1 mole - correct
answer How do you convert from grams to moles?
Mass - correct answer measure of the amount of matter
Compound - correct answer made from atoms of 2+ elements that are chemically
bonded; cannot be separated into simpler substances by any physical process; can be
separated by a chemical reaction
Solid - correct answer Definite shape and volume
Doesn't conform to shape of container
Particles are very close together in orderly fashion with little freedom of motion
Liquid - correct answer Definite volume, indefinite shape
Conforms to shape of the part of the container it fills
Particles are close together but not rigidly in position with freedom to move past
each other
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
Gas - correct answer No definite shape or volume
Conforms to shape and volume of container
Particles separated by distances very large compared to size of particles
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
,STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
ions - correct answer atoms with charge formed by loss or gain of an electron
Cation - correct answer positive ion, may have roman numeral
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
Surface area
Concentration
Temperature
Catalyst - correct answer What 4 factors impact the rate of a reaction?
, STRAIGHTLINER CHM101 Final Exam (NEW
2025/ 2026 Update) Introduction to
General, Organic, and Biochemistry
Questions & Answers Grade A 100%
Correct (Verified Solutions)
exothermic reaction - correct answer A reaction that RELEASES energy in the form of
heat
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
