If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Welcome to the chemistry library, unit 1: atoms, compounds, and ions, unit 2: more about atoms, unit 3: more about molecular composition, unit 4: mass spectrometry, unit 5: chemical reactions and stoichiometry, unit 6: more about chemical reactions, unit 7: electronic structure of atoms, unit 8: periodic table, unit 9: chemical bonds, unit 10: gases and kinetic molecular theory, unit 11: states of matter and intermolecular forces, unit 12: chemical equilibrium, unit 13: acids and bases, unit 14: buffers, titrations, and solubility equilibria, unit 15: thermodynamics, unit 16: redox reactions and electrochemistry, unit 17: kinetics, unit 18: nuclear chemistry, unit 19: studying for the ap chemistry exam, unit 20: meet the chemistry professional.
- Book A Demo
Homework & Practice
Aktiv Chemistry is a comprehensive online homework platform that helps students build mastery of chemistry. Take advantage of over 15,000 built-in chemistry problems, scaffolded practice, a powerful instructor dashboard, LMS grade syncing, and much more.
Comprehensive learning & assessment.
From in-class active learning, homework assignments, and now secure online quizzes and exams, Aktiv Chemistry’s all-in-one platform provides a comprehensive set of features for formative and summative assessments.
In-class or Synchronous Online
Take attendance, post polls & quizzes, enhance traditional worksheets, or promote think-pair-share activities. Learn More
Assign interactive problem sets with instant feedback and automatic grading that sync with institutional LMS gradebooks.
Timed Online Quizzes & Exams
Create summative assessments with question pools, algorithmic problems, and optional integrated proctoring. Learn More
15,000 PROBLEMS OR WRITE YOUR OWN
Extensive content library.
Building engaging classroom activities has never been easier. Aktiv Chemistry provides an extensive library of questions for chemistry courses such as General Chemistry, Introductory Chemistry, GOB Chemistry, Organic Chemistry. The content library includes discipline-specific problem types such as molecule drawing, chemical equations and naming, dimensional analysis, numerical entry, and more.
Easy and flexible authoring also allows instructors to add their own questions.
Learn More About
Draw the Lewis structure of (CHO)OCH₃ and then choose the appropriate set of molecular geometries of the three central atoms. Your answer choice is independent of the orientation of your drawn structure.
The solubility of He in water at 25.0 °C is 7.0 × 10⁻⁵ M when the partial pressure of He is 0.20 atm. What is the value of the Henry's law constant for He ?
According to the balanced reaction below, calculate the moles of NH₃ that form when 4.2 mol of N₂H₄ completely reacts 3 N₂H₄(l) → 4 NH₃(g) + N₂(g)
AFFORDABLE & FLEXIBLE
Built to work with any textbook.
Aktiv Chemistry ’s textbook independent approach means instructors have more flexibility for their courses. Build assignments that align to any major publisher textbook or increasingly popular OER options.
For General Chemistry courses, Aktiv Chemistry also offers seamless integration with the OpenStax Chemistry textbooks.
More chemistry, less technology.
Drawing chemical structures, entering subscripts and superscripts, and working with significant figures just shouldn’t be hard. That’s why Aktiv Chemistry was designed from the ground up with the student experience in mind. With intuitive user interfaces and scaffolded and visual modules, our goal is to use technology to lower the barrier to chemistry.
Bring Your Own Device. Any Device.
Students and instructors can access the Aktiv Learning app from any iPhone, iPad, or Android Device. Additionally, the platform is fully accessible on Web with any Mac, PC, or Chromebook.
Aktiv Chemistry ’s mobile-first design ensures that students receive the same experience no matter where they are. Students take advantage of the Aktiv Learning mobile app to work and study on-the-go in places like riding the bus or train, or even on campus when they have downtime.
Algorithmic problems & question pools.
Aktiv Chemistry offers additional security with both Question Pools and Algorithmic Problems. These features randomize the content that is delivered to each student during homeworks, quizzes, or exams. Instructors can also randomize the order of questions on any assignment.
Built-in variables create thousands of question variants to be delivered that randomize numbers, words, or compounds within the problem statement.
Group together a set of similar questions and deliver a subset of them at random to students.
Problem Pool 1
14 problems in this pool
- Problems to Assign
What is the correct IUPAC name for HBrO(aq)?
What is the correct IUPAC name for Ca(BrO₂)₂?
What is the correct IUPAC name for Ti(ClO₄)₄?
Professors from over 700 colleges and universities use Aktiv Chemistry to engage students inside and outside of the classroom. Learn how some of them have transformed their courses.
Helping Students Learn, Interact, and Visualize Chemistry in New Ways
¹ This quote was provided at a time where Aktiv Chemistry was named Chem101. We have replaced the use of Chem101 in any direct quotes with Aktiv Chemistry to minimize confusion.
Support your course, flexible grading policies.
Every Aktiv Chemistry activity has a multitude of grading policies that can be customized depending on the assignment type. Settings include points per problem, participation credit, late submissions with penalties, variable attempts per problem, penalties for incorrect attempts, and more. The Aktiv Chemistry gradebook can be set up to display summary columns or individual columns depending on the assignment type as well.
Any course using Aktiv Chemistry comes with our industry-leading support featuring average response times of 14 minutes and extended hours that include late nights and weekends. Additionally, every Aktiv Chemistry instructor works with an individual member of our Success team that helps with initial course set up, gradebook/LMS integrations, and recommendations for best practices.
Aktiv Chemistry’s gradebook can be synced with any popular campus LMS such as Canvas, Blackboard, Moodle, or D2L. The gradebook and associated columns can be customized to separate the various assignment types, to present individual assignments, or display summary columns for each type.
Speak to a Specialist
One of our Learning Specialists will give you a tour of the Aktiv Chemistry or Aktiv Mathematics learning platforms and provide a free instructor playground account with access to the content library.
I Want to Learn More About:
Chemistry 101: Practice Quiz! Trivia Exam
Do you think you can pass this chemistry practice quiz? Safety is one of the more practical benefits of studying chemistry. It teaches you what happens when you mix certain chemicals, and it tells us what is hazardous and what is safe. New developments in chemistry have also led to improved sanitation and hygiene technologies, such as clean drinking water. This quiz will guide you on your journey of learning about chemistry.
The matter is composed of?
Very small particles called atoms
Various components of cells that create energy
Rate this question:
Matter cannot be:
Broken into smaller bits
Part of the earth
Created nor destroyed
Which of the following is the best conductor of electricity?
Which of the following elements are not metal?
Which type of element is brittle when it is solid, elements in a group tend to be.
More similar chemically
Less similar chemically
Not similar at all chemically
Which of the following are elements in Period 7?
Why do we categorize elements.
So it looks pretty
So that elements can be understood by their structure and placement in the universe
There are dates in which they were founded and it is easier to know which ones came first.
The periodic table shows a total of _______ metalloids.
al3+ + 3ch3coo- → .
The periodic table is made up of elements that are arranged by?
Groups and periods
Periods and compounds
Families and elements
The bottom number in each elemental box is the
Number of protons
- Chemical Element
- Chemical Reaction
- Organic Chemistry
- Basic Chemistry
- Aeronautics Quizzes
- Aerospace Quizzes
- Agricultural Science Quizzes
- Astrology Quizzes
- Astronomy Quizzes
- Atom Quizzes
- Biochemistry Quizzes
- Biology Quizzes
- Biomechanics Quizzes
- Biostatistics Quizzes
- Biotechnology Quizzes
- Botany Quizzes
- Branches Of Science Quizzes
- Cytology Quizzes
- Easy Science Quizzes
- Ecology Quizzes
- Electrical Quizzes
- Embryology Quizzes
- Endocrinology Quizzes
- Engineering Quizzes
- Environmental Science Quizzes
- Epidemiology Quizzes
- Experiment Quizzes
- Forestry Quizzes
- Fossil Quizzes
- Gas Quizzes
- General Science Quizzes
- Genetics Quizzes
- Histology Quizzes
- Human Biology Quizzes
- Integrated Science Quizzes
- Invention Quizzes
- Library Science Quizzes
- Lighting Quizzes
- Liquid Quizzes
- Marine Biology Quizzes
- Microbiology Quizzes
- Molecular Biology Quizzes
- Nature Quizzes
- Neuroscience Quizzes
- Nuclear Science Quizzes
- Oceanography Quizzes
- Physics Quizzes
- Psychology Quizzes
- Science And Technology Quizzes
- Science Glossary Quizzes
- Science Knowledge Quizzes
- Science Practice Quizzes
- Scientific Method Quizzes
- Scientific Notation Quizzes
- Soil Science Quizzes
- Solar System Quizzes
- Solid Quizzes
- Zoology Quizzes
Wait! Here's an interesting quiz for you.