alleryIn the reaction H₂ + O₂ → H₂O, when the products are weighed, the mass equals:
AZero
BLess than the reactants
CSame as the reactants
DMore than the reactants
Answer & Solution
Correct answer: C. Same as the reactants
By the law of conservation of mass, the products weigh exactly the same as the reactants (provided no gas escapes the closed system).
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