30 Questions
What is the type of chemical reaction that occurs when iron reacts with oxygen?
Combustion
What is the primary component of steel?
Iron
Why is steel wool used in experiments to demonstrate the reaction of iron with oxygen?
Because it provides a large surface area
What is the color of the sparks produced when iron or steel wool burns?
Orange
What is the product of the combustion reaction of iron?
Iron(III) oxide
What is the reactant gas present in the air during the combustion reaction of iron?
Oxygen
What is the balanced chemical equation for the reaction of iron with oxygen?
4Fe + 3O₂ → 2Fe₂O₃
What is the term for the energy released during the combustion reaction of iron?
Exothermic
What is the visual effect observed when iron shavings are placed in the flame of a Bunsen burner?
Visible sparks
What is the purpose of the combustion reaction of iron?
To release energy in the form of light and heat
What happens when iron combines with oxygen from the air?
It forms iron oxide
What is the term for the process of iron reacting with oxygen?
Combustion
What is the physical state of the iron reactant?
Solid
What is the purpose of using steel wool in the experiment?
To increase the visibility of the reaction
What is the result of the combustion reaction of iron?
Energy is released
What is the role of oxygen in the reaction?
It is a reactant
What is the chemical formula for the product of the combustion reaction?
Fe₂O₃
What is the ratio of iron to oxygen in the balanced chemical equation?
4:3
What can be observed during the combustion reaction of iron?
Orange sparks
Why does the combustion reaction of iron release energy?
Because the reaction is exothermic
What is the primary characteristic of combustion reactions?
Releasing energy in the form of light and heat
Why does the combustion reaction of iron release energy?
Because the reaction involves the release of light and heat
What is the purpose of using a Bunsen burner in the experiment?
To produce a high-temperature flame
What is the role of the iron in the combustion reaction?
To react with oxygen to form a solid compound
What is the result of the combustion reaction of iron in terms of the reactants?
The iron is oxidized and the oxygen is reduced
What is the significance of the orange sparks produced during the combustion reaction?
They indicate the release of energy in the form of light
Why does the combustion reaction of iron require a large surface area?
To facilitate the reaction between iron and oxygen
What is the chemical formula for the reactant iron?
Fe
What is the ratio of iron to oxygen in the combustion reaction?
4:3
What is the physical state of the product of the combustion reaction?
Solid
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