(i) Iron reacts with water under certain conditions. This typically occurs when the iron is exposed to both water and oxygen, and the reaction is accelerated by the presence of salts. The most common condition is when iron is exposed to moist air, leading to the formation of rust.

(ii) The balanced chemical equation for the reaction of iron (Fe) with water (H2O) to form rust (iron(III) oxide, Fe2O3) and hydrogen gas (H2) is as follows:

3Fe + 4H2O → Fe2O3 + 4H2

(iii) If the products of the reaction are not allowed to escape, they will accumulate around the iron. This can lead to an increased rate of corrosion, as the products of the reaction can further react with the iron and the water. In particular, the hydrogen gas that is produced can create a pressurized environment that accelerates the reaction.

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(i) Iron reacts with water under certain conditions. This typically occurs when the iron is exposed to both water and oxygen, and the reaction is accelerated by the presence of salts. The most common condition is when iron is exposed to moist air, leading to the formation of rust.

(ii) The balanced chemical equation for the reaction of iron (Fe) with water (H2O) to form rust (iron(III) oxide, Fe2O3) and hydrogen gas (H2) is as follows:

3Fe + 4H2O → Fe2O3 + 4H2

(iii) If the products of the reaction are not allowed to escape, they will accumulate around the iron. This can lead to an increased rate of corrosion, as the products of the reaction can further react with the iron and the water. In particular, the hydrogen gas that is produced can create a pressurized environment that accelerates the reaction.

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(i) Iron reacts with water under certain conditions. This typically occurs when the iron is exposed to both water and oxygen, and the reaction is accelerated by the presence of salts. The most common condition is when iron is exposed to moist air, leading to the formation of rust.

(ii) The balanced chemical equation for the reaction of iron (Fe) with water (H2O) to form rust (iron(III) oxide, Fe2O3) and hydrogen gas (H2) is as follows:

3Fe + 4H2O → Fe2O3 + 4H2

(iii) If the products of the reaction are not allowed to escape, they will accumulate around the iron. This can lead to an increased rate of corrosion, as the products of the reaction can further react with the iron and the water. In particular, the hydrogen gas that is produced can create a pressurized environment that accelerates the reaction.

(i) Under what conditions iron reacts with water?(ii) Give the balanced equation of the reaction.(iii) What is noticed if the products are not allowed to escape?

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