General reaction laboratory
Choose reviewed reactants and conditions, observe products, balance atoms, calculate stoichiometry and inspect the energy change.
Scientific learning path
- 01UnderstandLive
- 02ExploreLive
- 03ExperimentLive
- 04ObserveLive
- 05ExplainLive
- 06ApplyLive
- 07TestLive
Interactive experiment
LiveZn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)
Reactants ready — start the reaction
Observation
Start the model to reveal the expected macroscopic observation.
Theory
Zinc is oxidized to Zn2+ and Cu2+ is reduced to copper; sulfate is a spectator ion.
Balance
LiveEdit coefficients only. Subscripts identify the substances and must not change.
Calculation
- Reaction extent
- 1.000 mol
- Standard ΔH
- -218.7 kJ
- ZnSO4 produced
- 1.000 mol
- Cu produced
- 1.000 mol
ΔH° = -218.7 kJ per 1 mol Zn consumed under dilute aqueous conditions; scaled by reaction extent.
Energy change
Procedure
- Select the first and second reactants.
- Set the amount of the first reactant.
- Select the reviewed reaction condition.
- Start and record the observation.
- Balance with coefficients, then compare atom totals.
- Use reaction extent to calculate product amounts and energy.
Result
Complete the interactive experiment to state a result.
Viva
- Why can coefficients change while subscripts cannot?
- Which reactant would limit the reaction if the second reactant were not supplied in its required ratio?
- What does a negative standard enthalpy change mean?
Quick test
What must remain equal on both sides of an ordinary chemical equation?
Scientific references
Live- Atkins, de Paula & Keeler, Atkins’ Physical Chemistry, 11th ed.
- NIST Chemistry WebBook — thermochemical reference data.
Description of this simulation
Choose two reactants, the amount and a suitable condition, then start the reviewed zinc-copper displacement model.
Quick test · 3 questions
Reaction learning path
11 of 17 reviewed reactions
Open foundation-to-advanced pathObjective
Safety
LiveCopper salts are harmful to aquatic life and zinc surfaces may be sharp. Use supervised disposal procedures.
This screen is a simulation, never a substitute for supervised laboratory risk assessment.
Chemicals
Zn(s) + CuSO4(aq)
Apparatus
- Beaker model
- Zinc strip
- Mass balance
- Colour indicator
What this model shows — and what it simplifies
Educational ModelThis is a closed, stoichiometric teaching model.
Where do we see this in real life?
The same redox tendency explains galvanic cells, sacrificial protection and metal displacement tests.
Explain this result
Scientific review record
Building- Module version
- v1 bundled
- Published
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- Last reviewed
- Not yet verified
- Academic level
- School
- Reviewer
- Not publicly assigned
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