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Language of Chemistry — CHEMISTRY STD 8 — Question

ICSE BoardEnglish MediumSTD 8CHEMISTRYLanguage of Chemistry2 Marks
Question
Balance the following equations : $\ce{Fe_2O_2 + CO \rightarrow Fe + CO_2}$
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Answer

$\ce{Fe_2O_3 + CO \rightarrow Fe + CO_2}$
Multiply $Fe$ by $2$ to make atoms of $Fe$ equal and to make $\ce{CO_2}$ atoms equal by using $3$ atoms of oxygen in
$\ce{Fe_2O_3}$
$\ce{Fe_2O_3 + 3 CO \rightarrow 2Fe + 3CO_2}$

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