Live reaction world
From the first balanced equation to advanced reaction reasoning
Choose a reviewed pathway, change the amount and condition, watch products appear, balance every atom and connect the result to energy, kinetics, equilibrium and real use.
- 17
- reviewed reaction paths
- 6
- connected concept labs
- 100%
- NEET/JEE Main units mapped
- 100%
- JEE Advanced topics mapped
Guided progression
Foundation → exam core → advanced
Every card opens a working interactive model, not a coming-soon screen.
19 live paths
Foundation
Conservation, coefficients, mole ratios and visible reaction evidence.
- Level 1Formation of liquid water2 H2(g) + O2(g) → 2 H2O(l)Breaking H–H and O=O bonds requires energy, while forming O–H bonds releases more energy overall.Run pathway
- Level 1Strong-acid neutralizationHCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)For a strong acid and strong base, the net ionic reaction is H+ + OH− → H2O.Run pathway
- Level 2Complete combustion of methaneCH4(g) + 2 O2(g) → CO2(g) + 2 H2O(l)Carbon is oxidized to carbon dioxide and hydrogen to water; oxygen is reduced as C–H and O=O bonds are replaced.Run pathway
- Level 2Haber ammonia synthesisN2(g) + 3 H2(g) → 2 NH3(g)A catalyst accelerates both directions without changing the equilibrium constant; pressure favours the side with fewer gas molecules.Run pathway
- Level 2Oxidation of carbon monoxide2 CO(g) + O2(g) → 2 CO2(g)Carbon changes from oxidation state +2 to +4 while oxygen is reduced from 0 to -2.Run pathway
- Level 2Hydrogenation of etheneC2H4(g) + H2(g) → C2H6(g)The pi bond is replaced by two C-H sigma bonds; the net reaction is an addition and reduction.Run pathway
- Level 2Formation of hydrogen chlorideH2(g) + Cl2(g) → 2 HCl(g)Light initiates homolytic chlorine-bond cleavage and a radical chain converts H2 and Cl2 into HCl.Run pathway
- Level 2Formation of iron(III) oxide4 Fe(s) + 3 O2(g) → 2 Fe2O3(s)Iron loses electrons to oxygen. Surface area, moisture and electrolyte ions strongly affect the real corrosion pathway.Run pathway
- Level 2Hydration of quicklimeCaO(s) + H2O(l) → Ca(OH)2(s)An acid-base hydration converts basic calcium oxide into calcium hydroxide and releases heat.Run pathway
26 live paths
Exam core
Redox, precipitation, organic change, energy and industrial equilibria.
- Level 3Contact-process oxidation2 SO2(g) + O2(g) → 2 SO3(g)The catalyst changes the rate, not the equilibrium position; lower temperature favours products but slows the uncatalysed reaction.Run pathway
- Level 3Zinc-copper displacementZn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)Zinc is oxidized to Zn2+ and Cu2+ is reduced to copper; sulfate is a spectator ion.Run pathway
- Level 3Silver chloride precipitationAgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)Ag+ and Cl- exceed the solubility limit and form AgCl; sodium and nitrate ions remain spectators.Run pathway
- Level 3Complete combustion of ethanolC2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)Carbon and hydrogen are oxidized; balancing carbon and hydrogen first leaves the oxygen coefficient.Run pathway
- Level 3Combustion model for glucoseC6H12O6(s) + 6 O2(g) → 6 CO2(g) + 6 H2O(l)The equation has the same overall atoms as aerobic respiration, but biological oxidation occurs through many coupled enzyme steps.Run pathway
- Level 3Complete combustion of methanol2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(l)The smallest whole-number equation uses two methanol molecules so the oxygen coefficient remains an integer.Run pathway
32 live paths
Advanced
Coupled industrial reactions, equilibrium trade-offs and model limitations.
- Level 4Methane steam reformingCH4(g) + H2O(g) → CO(g) + 3 H2(g)High temperature supplies energy to the endothermic reaction; product composition also depends on pressure and the water-gas shift equilibrium.Run pathway
- Level 4Water-gas shift reactionCO(g) + H2O(g) → CO2(g) + H2(g)The reaction is mildly exothermic; catalyst choice and staged temperatures balance rate with equilibrium conversion.Run pathway
Exam toolkit
Go beyond one equation
- Balance any equationConserve atoms and reduce coefficients to their smallest whole-number ratio.
- Reaction ratesChange order, temperature, activation energy and catalyst strength.
- StoichiometrySolve mole, limiting-reagent, yield and empirical-formula problems.
- ThermodynamicsConnect Hess cycles, entropy, Gibbs energy and feasibility.
- EquilibriumCompare Q with K and apply concentration, pressure and temperature stresses.
- ElectrochemistryBuild cells, use Nernst and calculate electrolysis products.
2026 syllabus audit
Every official top-level chemistry unit has a live route
The coverage page shows all 20 NEET units, all 20 JEE Main units and all 37 JEE Advanced topics, the linked simulations and the exact official syllabus source. The 100% figure is unit mapping—not a promise of complete subtopic depth or exam mastery.