H Helix Chemistry Hub

Chemistry You Can Model

Manipulate 3D molecules, balance equations, run virtual reactions, and master stoichiometry with guided problem solving.

Enter the Lab
40+
Virtual Experiments
5,500+
Practice Problems
300+
3D Molecules
4.8/5
Teacher Rating

Atomic Structure & Bonding

Explore electron configurations, orbital diagrams, ionic and covalent bonding, Lewis structures, VSEPR theory, and molecular geometry with 3D viewers.

Reactions & Stoichiometry

Classify reaction types, balance equations, perform mole calculations, limiting reagent analysis, and solution stoichiometry with step-by-step guidance.

Organic & Biochemistry

Study functional groups, naming conventions, reaction mechanisms, polymers, and biochemical molecules including proteins, lipids, and nucleic acids.

What We Offer

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Virtual Lab

Mix reagents, observe reactions, collect data, and analyze results in a safe virtual environment.

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Molecule Viewer

3D interactive models showing bond angles, electron density, and molecular orbitals.

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Equation Balancer

Step-by-step equation balancing tool with stoichiometric ratio calculations.

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Lab Notebooks

Digital lab notebooks with procedure guides, data tables, and calculation templates.

What Learners Say

Rotating 3D molecules and seeing the actual bond angles made VSEPR theory click instantly.
Emma T., Grade 11
The virtual labs are a lifesaver for schools without full chemistry lab facilities.
Dr. Kim, Chemistry Dept.