Which of the following statements is correct | vedclass

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(A) According to the law of conservation of mass,the total mass of the reactants must equal the total mass of the products in a balanced chemical equa

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Total mass of iron and oxygen used in reaction $=$ total mass of ferric oxide in product; therefore,it follows law of conservation of mass.

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(A) According to the law of conservation of mass,the total mass of the reactants must equal the total mass of the products in a balanced chemical equation.In the reaction $4Fe_{(s)} + 3O_{2_{(g)}} 	o 2Fe_{2}O_{3_{(s)}}$,the mass of $4$ moles of $Fe$ and $3$ moles of $O_{2}$ equals the mass of $2$ moles of $Fe_{2}O_{3}$.Therefore,statement $A$ is correct as it correctly identifies that the reaction follows the law of conservation of mass.Statement $B$ is incorrect because the law of multiple proportions applies to two elements forming more than one compound,not to a single balanced reaction.Statements $C$ and $D$ are incorrect because the amount of product is determined by the limiting reagent,not by simply adding excess of one reactant.

Compound	$\% Sn$	$\% O$
$A$	$78.77$	$21.23$
$B$	$88.12$	$11.88$

Which of the following statements is correct about the given reaction?
$4Fe_{(s)} + 3O_{2_{(g)}} \to 2Fe_{2}O_{3_{(s)}}$

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In two compounds,each containing tin $(Sn)$ and oxygen,the composition is as follows. Which law of chemical combination can be illustrated by this data?

Compound $\% Sn$ $\% O$

$A$ $78.77$ $21.23$

$B$ $88.12$ $11.88$

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Which of the following statements is correct about the given reaction?$4Fe_{(s)} + 3O_{2_{(g)}} \to 2Fe_{2}O_{3_{(s)}}$