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  1. All Key Terms
  2. AP Chemistry

Browse all AP Chemistry Key Terms

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(CH3)3N
[Ca²⁺]
[Cl⁻]
ΔE
ΔG
ΔG < 0
ΔG°
ΔH
ΔH (Change in Enthalpy)
ΔHrxn (Delta H reaction)
ΔH°
ΔH° and ΔH
∆Hfus
∆Hvap
∆S
100% Products
100% Reactants
1s Orbital
1s peak
298 K
2O₃ ⇌ 3O₂
2p Orbital
2s Orbital
5% Approximation Rule

A

Absolute Enthalpy of a System (H)
Absolute Entropy
Absolute Zero
Absorbance
Absorbs
Absorption of Light
Abundance
Abundance of Isotopes
Acetate Buffer
Acetate Ions
Acetic Acid
Acetic Acid (CH₃COOH)
Acetylene
Acid
Acid Concentration
Acid form
Acid Strength
Acid-Base Catalysis
Acid-Base Indicator
Acid-Base Indicators
Acid-Base Neutralization Reaction
Acid-Base Reactions
Acid-base titration
Acid-Base Titrations
Acid/conjugate base pair
Acidic Hydrogens
Acidic Salt
Acidic Solution
Acidity
Acids
Activated Complex
Activation Energy
Adding Reactions Together
Adhesive Forces
Ag+ Ion
AgCl
AgI
Ag₂CrO₄
Air
Al3+ Ion
Albert Einstein
Alkali Metal
Alkali Metal Hydroxides
Alkali metals
Alkaline Metal Hydroxides
Alloy
Alloys
Alumina
Aluminium
Aluminium Nitrate
Aluminum
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every AP exam is fiveable

Fiveable
Study Content & Tools
Study GuidesPractice QuestionsGlossaryScore Calculators
Company
Get $$ for referralsPricingTestimonialsFAQsEmail us
Resources
AP ClassesAP Classroom
history
🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history
social science
✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government
english & capstone
✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar
arts
🎨 ap art & design🖼️ ap art history🎵 ap music theory
science
🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics
math & computer science
🧮 ap calculus ab♾️ ap calculus bc📊 ap statistics💻 ap computer science a⌨️ ap computer science p
world languages
🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

go beyond AP

high school exams
✏️ PSAT🎓 Digital SAT🎒 ACT
honors classes
🍬 honors algebra II🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history
college classes
👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science
TermsPrivacyCCPA
© 2025 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.