Exploring Activation Energy in Chemical Reactions

What is required for oxygen and methane molecules to react in a container?

• A spark or flame

• Increased pressure

• Presence of a catalyst

• A decrease in temperature

What term is used to describe the energy needed to initiate a reaction?

• Thermal energy

• Kinetic energy

• Potential energy

• Activation energy

During the reaction between oxygen and methane, what type of reaction occurs?

• Endothermic

• Synthesis

• Exothermic

• Decomposition

What happens to the energy during the exothermic reaction between oxygen and methane?

• It is released

• It is completely absorbed

• It remains constant

• It is entirely converted to light

What provides the activation energy for nitrogen and oxygen to react in the air?

• Lightning

• Sunlight

• Friction

• Chemical catalysts

What type of reaction occurs when nitrogen and oxygen react in the air due to lightning?

• Synthesis

• Endothermic

• Exothermic

• Decomposition