Structural formulas are like models because they show _[blank]_. which answer best completes this statement? a condensed way of writing a compound how elements arrange within a compound how electrons arrange within a compound the three-dimensional shape of a compound

The correct option is:

how elements arrange within a compound  

Structural formula are like models because they show how elements arrange within a compound.  

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answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.