Make the idea your own
- 1Read the inputs and predict what will change.
- 2Change one parameter while keeping the other fixed.
- 3Explain the result using the diagram and the live values.
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Class 10 · Chemistry
Reaction mass ratios
Interactive explanation Gamified quiz, feedback & rewards
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NCERT chapter connection · Learning goals & preparation
By the end, you can…
- Explain Water mass = min(9mH₂, 9mO₂/8)
- Change one input at a time and predict its effect before checking the model.
- Apply the relationship in a quiz and explain the reasoning behind your answer.
Useful preparation: Counting particles, ratios and the difference between a model and a real substance. Suggested previous stop: Balance a reaction.
Science · Chemical Reactions and Equations
NCERT Science · reprint 2025–26. This activity explores part of the chapter; it does not replace the textbook. Open official NCERT reference ↗
Interactive exploration · Class 10
Reaction mass ratios
Class 10
CLASS 10 · CONCEPT QUEST
Turn understanding into a small adventureReaction mass ratios
Discover the rule, predict what happens, then put the idea to work.
DiscoverFind the idea→PredictThink it through→ApplyMake it click
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The relationshipWater mass = min(9mH₂, 9mO₂/8)
Notice the pattern
Once one reactant runs out, excess of the other cannot produce more product.