Suppose that a different student obtained reaction
rates for the particle-size experiment, and that
these rates did not show a pattern. Check all
possible sources of this error.
Some of the broken tablet was not added to
the water.
The tablet was not crushed enough to make
a substantial difference
The size of the reaction beaker was varied.
The tablets were not uniform in their mass.

idk

explanation:

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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.