Chem 2: Final Exam Questions With all
Correct Answers 2026/2027 Updated.
Filtration - Answer the process that separates a solid from the liquid in a heterogeneous
mixture
Distillation - Answer a liquid is boiled to produce a vapor that is then condensed into a liquid
Matter - Answer Anything that has mass and takes up space
What are examples of matter? - Answer solids, liquids, and gases
What are not examples of matter? - Answer Ideas, light, energy, thoughts, laugh, sound
Law of Constant Composition - Answer A given compound always contains elements in
exactly the same proportion by mass
chemical change examples - Answer burning, rusting,combustion, oxidation
physical change examples - Answer cutting string, crumpling paper, melting ice, evaporating
water
extensive property examples - Answer Mass, volume, length, shape, weight
intensive property examples - Answer Density, freezing point, melting point, color, taste,
odor, boiling point, ability to conduct electricity
Accuracy - Answer how close a measurement is to the true value
Precision - Answer a measure of how close a series of measurements are to one another
What are the three subatomic particles? - Answer protons, neutrons, electrons
What is the charge of protons? - Answer positive
What is the charge of neutrons? - Answer no charge
, What is the charge of electrons? - Answer negative
Where are protons and neutrons located? - Answer nucleus
Where are electrons located? - Answer outside the nucleus
isotopes - Answer Atoms of the same element that have different numbers of neutrons
atoms w/ identical atomic numbers but different mass numbers
Dalton's Atomic Theory - Answer 1) elements are composed of atoms.
2) atoms of same element are identical, but differ from other elements.
3) elements can mix together
4) atoms only change when mixed with other elements
What was Rutherford's experiment? - Answer the gold foil experiment - positively charged
alpha particles were fired at a very thin sheet of gold foil
What was Thomson's experiment? - Answer cathode ray tube; glass cylinder filled with gas at
a low pressure and having two metal disks at the end connected to a power source
What did Rutherford discover? - Answer Nucleus and protons
What did Thomson discover? - Answer electrons
How can an atom become an ion? - Answer by gaining or losing electrons
What does VSEPR stand for? - Answer Valence Shell Electron Pair Repulsion
How can rotation about a double bond occur? - Answer pi bonds breaking
What does diamagnetic mean? - Answer paired electrons
What does paramagnetic mean? - Answer unpaired electrons
Correct Answers 2026/2027 Updated.
Filtration - Answer the process that separates a solid from the liquid in a heterogeneous
mixture
Distillation - Answer a liquid is boiled to produce a vapor that is then condensed into a liquid
Matter - Answer Anything that has mass and takes up space
What are examples of matter? - Answer solids, liquids, and gases
What are not examples of matter? - Answer Ideas, light, energy, thoughts, laugh, sound
Law of Constant Composition - Answer A given compound always contains elements in
exactly the same proportion by mass
chemical change examples - Answer burning, rusting,combustion, oxidation
physical change examples - Answer cutting string, crumpling paper, melting ice, evaporating
water
extensive property examples - Answer Mass, volume, length, shape, weight
intensive property examples - Answer Density, freezing point, melting point, color, taste,
odor, boiling point, ability to conduct electricity
Accuracy - Answer how close a measurement is to the true value
Precision - Answer a measure of how close a series of measurements are to one another
What are the three subatomic particles? - Answer protons, neutrons, electrons
What is the charge of protons? - Answer positive
What is the charge of neutrons? - Answer no charge
, What is the charge of electrons? - Answer negative
Where are protons and neutrons located? - Answer nucleus
Where are electrons located? - Answer outside the nucleus
isotopes - Answer Atoms of the same element that have different numbers of neutrons
atoms w/ identical atomic numbers but different mass numbers
Dalton's Atomic Theory - Answer 1) elements are composed of atoms.
2) atoms of same element are identical, but differ from other elements.
3) elements can mix together
4) atoms only change when mixed with other elements
What was Rutherford's experiment? - Answer the gold foil experiment - positively charged
alpha particles were fired at a very thin sheet of gold foil
What was Thomson's experiment? - Answer cathode ray tube; glass cylinder filled with gas at
a low pressure and having two metal disks at the end connected to a power source
What did Rutherford discover? - Answer Nucleus and protons
What did Thomson discover? - Answer electrons
How can an atom become an ion? - Answer by gaining or losing electrons
What does VSEPR stand for? - Answer Valence Shell Electron Pair Repulsion
How can rotation about a double bond occur? - Answer pi bonds breaking
What does diamagnetic mean? - Answer paired electrons
What does paramagnetic mean? - Answer unpaired electrons
