For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here iron is having an oxidation state of +3 called as $Fe^{3+}$ cation and oxide $O^{2-}$ is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $Fe_2O_3$ .

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$2Fe+3O_2\rightarrow 2Fe_2O_3$

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3 years ago

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Change the following word equation into a formula equation AND balance it. Iron(III) carbonate --> Iron(III) oxide + Carbon d

nignag [31]

FeO + CO2 //written in the number form

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3 years ago

Chemical formula of binary compound a of oxygen acidic<br>

Reika [66]

A binary compound of oxygen with another element is called oxide. An oxide is a binary compound of oxygen and another element. Oxygen combines with metals and non-metals to form respective oxides.

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3 years ago

Which of the following is the correct name for the compound S3Cl2? Sulfur chloride Sulfur (III) chloride Sulfur (II) chloride Tr

Rus_ich [418]

Sulfur is not a transition metal so it does not need a Roman numeral the correct answer is Trisulfur Dichloride

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