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Iron reacts with water in a single

replacement reaction.
Which reaction shows the correctly
balanced equation?
A. Fe + 2H₂O →2FeO + H₂
B. 2Fe + H₂O →2FeO + H₂
C. Fe + H₂O →2FeO + H₂
D. Fe + H₂O → FeO + H₂

User Donatello
by
6.8k points

2 Answers

1 vote

Answer: B.

Explanation: The correct balanced equation for the reaction of iron with water in a single replacement reaction is:

B. 2Fe + 2H₂O → 2FeO + H₂

Step-by-step explanation:

In a single replacement reaction, one element replaces another in a compound. In this case, iron (Fe) is replacing hydrogen (H) in water (H₂O). The products of the reaction are iron oxide (FeO) and hydrogen gas (H₂).

To balance the equation, we need to make sure that the same number of atoms of each element are present on both the reactant and product sides.

In option A, the equation is not balanced because there are two oxygen atoms on the reactant side and only one on the product side.

In option B, the equation is correctly balanced with two iron atoms, four hydrogen atoms, and two oxygen atoms on both sides of the equation.

In option C, the equation is not balanced because there is only one water molecule on the reactant side, while there are two iron oxide molecules and one hydrogen molecule on the product side.

In option D, the equation is not balanced because there are two hydrogen atoms on the reactant side and only one on the product side.

User Amry
by
7.3k points
4 votes

Answer:D. Fe + H₂O → FeO + H₂

Step-by-step explanation:

User Juan Di Diego
by
7.5k points