About the Reaction Lab 3D model (Chemistry)

A virtual chemistry bench: mix acid and base with an indicator, and set off a gas reaction — measure temperature, watch the colour change and test your predictions.

When an acid meets a base they neutralise each other, forming salt and water and releasing heat — this is why the thermometer rises. Universal indicator turns from red (acidic) through green (neutral) to purple (alkaline). Carbonates react with acids to release carbon dioxide gas. The bubbles you see are CO₂, the same gas that makes fizzy drinks sparkle and turns limewater milky.

What students learn from this chemistry model

• Predict what happens before you mix two chemicals
• Neutralise an acid with a base and read the indicator colour
• Measure the temperature change of an exothermic reaction
• Collect and identify the gas from a carbonate reaction

Labelled parts explained

What is the Flask in Reaction Lab?

Mix chemicals here and watch the indicator colour, temperature and bubbles respond.

What is the Indicator in Reaction Lab?

Universal indicator is red in acid, green when neutral and purple in alkali.

What is the Acid in Reaction Lab?

Acids have a pH below 7. Hydrochloric acid is a strong acid that fully splits into H⁺ and Cl⁻ ions.

What is the Base in Reaction Lab?

Bases have a pH above 7. When an acid and a base react they neutralise each other, forming salt and water.

What is the Gas bubbles in Reaction Lab?

Carbonates fizz with acid, releasing carbon dioxide. CO₂ turns limewater milky and puts out a glowing splint.

What is the Temperature in Reaction Lab?

Neutralisation is exothermic — the mixture warms up as bonds form in the products.

Explore more free interactive science models in the LearnExa 3D Lab, or book a verified tutor to go deeper on chemistry.