Questions: In the following equation for a chemical reaction, the notation (s), (l), or (g) indicates whether the substance is in the solid, liquid, or gaseous state. Fe₂O₃(s) + 3H₂(g) + energy → 2Fe(s) + 3H₂O(g) Identify each of the following as a product or a reactant: H₂(g) H₂O(g) Fe(s) Fe₂O₃(s) When the reaction takes place energy is The reaction is Submit Answer Study Entire Group

In the following equation for a chemical reaction, the notation (s), (l), or (g) indicates whether the substance is in the solid, liquid, or gaseous state. Fe₂O₃(s) + 3H₂(g) + energy → 2Fe(s) + 3H₂O(g) Identify each of the following as a product or a reactant: H₂(g) H₂O(g) Fe(s) Fe₂O₃(s) When the reaction takes place energy is The reaction is Submit Answer Study Entire Group
Transcript text: In the following equation for a chemical reaction, the notation (s), (l), or (g) indicates whether the substance is in the solid, liquid, or gaseous state. Fe₂O₃(s) + 3H₂(g) + energy → 2Fe(s) + 3H₂O(g) Identify each of the following as a product or a reactant: H₂(g) H₂O(g) Fe(s) Fe₂O₃(s) When the reaction takes place energy is The reaction is Submit Answer | Study Entire Group
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Solution

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Solution Steps

Step 1: Identify Reactants and Products
  • Reactants are substances that start a chemical reaction. In the given equation, they are on the left side of the arrow.
  • Products are substances formed as a result of the chemical reaction. They are on the right side of the arrow.
Step 2: Classify Each Substance
  • \( \text{H}_2(g) \): This is on the left side of the equation, so it is a reactant.
  • \( \text{H}_2\text{O}(g) \): This is on the right side of the equation, so it is a product.
  • \( \text{Fe}(s) \): This is on the right side of the equation, so it is a product.
  • \( \text{Fe}_2\text{O}_3(s) \): This is on the left side of the equation, so it is a reactant.
Step 3: Determine the Role of Energy
  • The equation indicates that energy is required for the reaction to proceed, as it is written on the left side of the arrow. This means energy is a reactant in this context.
Step 4: Classify the Reaction Type
  • Since energy is absorbed for the reaction to occur, this is an endothermic reaction.

Final Answer

  • \( \text{H}_2(g) \): Reactant
  • \( \text{H}_2\text{O}(g) \): Product
  • \( \text{Fe}(s) \): Product
  • \( \text{Fe}_2\text{O}_3(s) \): Reactant

Energy is a reactant.

The reaction is endothermic.

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