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Physical and Chemical Changes — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYPhysical and Chemical Changes1 Mark
Question
Balance the equations.
$Fe + O _2 \rightarrow Fe _2 O _3$
✓

Answer

$4 Fe +3 O _2 \rightarrow 2 Fe _2 O _3$

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