AP CHEMISTRY PRACTICE MIDTERM
STUDY GUIDE 2026 COMPLETE
QUESTIONS AND VERIFIED
ANSWERS
◉ Density. Answer: mass / volume
◉ Molarity. Answer: moles / L
◉ Distillation. Answer: Depends on differences in volatility. Separating
by boiling point difference.
◉ Filtration. Answer: Separating a solid from a liquid
◉ Chromatography. Answer: separation of the components of a mixture
by slow passage over or through a material that absorbs the components
differently
◉ Law of conservation of mass. Answer: Mass is neither created nor
destroyed
◉ Dalton's Atomic Theory. Answer: Each element is made up of tiny
particles called atoms.
The atoms of a given element are identical.
, Chemical compounds are forms when atoms of different elements
combine with each other.
Chemical reactions involve reorganization of the atoms (changes in the
way they are bound together.)
◉ JJ Thomson. Answer: Cathode Ray, discovered the electron
◉ Rutherford. Answer: Gold Foil Experiment, discovered nuclei, atoms
have a lot of space
◉ Solubility Rules. Answer: Nitrates, Ammonium, Potassium, Sodium
all soluble
◉ Strong Electrolytes. Answer: Good conductors, easily ionized
◉ Weak Electrolytes. Answer: Conduct currents very weakly
◉ Strong Acids. Answer: HF, HBr, HCl, HClO4, HI, HClO3, HNO3
◉ Strong Bases. Answer: All Group IA elements with OH-
Ca(OH)2, Sr(OH)2, Ba(OH)2,
STUDY GUIDE 2026 COMPLETE
QUESTIONS AND VERIFIED
ANSWERS
◉ Density. Answer: mass / volume
◉ Molarity. Answer: moles / L
◉ Distillation. Answer: Depends on differences in volatility. Separating
by boiling point difference.
◉ Filtration. Answer: Separating a solid from a liquid
◉ Chromatography. Answer: separation of the components of a mixture
by slow passage over or through a material that absorbs the components
differently
◉ Law of conservation of mass. Answer: Mass is neither created nor
destroyed
◉ Dalton's Atomic Theory. Answer: Each element is made up of tiny
particles called atoms.
The atoms of a given element are identical.
, Chemical compounds are forms when atoms of different elements
combine with each other.
Chemical reactions involve reorganization of the atoms (changes in the
way they are bound together.)
◉ JJ Thomson. Answer: Cathode Ray, discovered the electron
◉ Rutherford. Answer: Gold Foil Experiment, discovered nuclei, atoms
have a lot of space
◉ Solubility Rules. Answer: Nitrates, Ammonium, Potassium, Sodium
all soluble
◉ Strong Electrolytes. Answer: Good conductors, easily ionized
◉ Weak Electrolytes. Answer: Conduct currents very weakly
◉ Strong Acids. Answer: HF, HBr, HCl, HClO4, HI, HClO3, HNO3
◉ Strong Bases. Answer: All Group IA elements with OH-
Ca(OH)2, Sr(OH)2, Ba(OH)2,
