All demos
AI / Guided reasoning
Ask why, not just what.
Choose a question about the science you are looking at. Every sample answer shows the reasoning, the equation and a source.
Open ended All levels 2D / browser
Live demo / no sign in requiredBuilt with demo data
Lab tutor
Grounded in your course
Teacher reviewed
Viewing contextNa + H₂O / electron transfer
Why does sodium react so violently with water?
Sodium has one electron in its outer shell. Water's oxygen has room to take it, and the transfer is strongly favourable.
That transfer produces sodium ions, hydroxide ions and hydrogen gas. The reaction also releases a lot of heat, which can ignite the hydrogen.
2Na + 2H₂O → 2NaOH + H₂
One valence electron. A very willing donor.
Source: Reactivity series, lesson 2.4Checked
Try asking
What this demo shows
- Answers start from the model on screen.
- Equations and structures are shown, not hidden.
- A source is attached to every grounded explanation.
Keep the model. Keep the progress.
Create a free demo account to save sessions, see mastery and bring the lab into a class.