Questions: Part A Compared with the energy it takes to separate oxygen and hydrogen from water, how much energy is released when they recombine? More energy is released when they recombine. Less energy is released when they recombine. The same amount of energy is released when they recombine. No energy is released when they recombine. Submit Request Answer

Part A Compared with the energy it takes to separate oxygen and hydrogen from water, how much energy is released when they recombine? More energy is released when they recombine. Less energy is released when they recombine. The same amount of energy is released when they recombine. No energy is released when they recombine. Submit Request Answer
Transcript text: Part A Compared with the energy it takes to separate oxygen and hydrogen from water, how much energy is released when they recombine? More energy is released when they recombine. Less energy is released when they recombine. The same amount of energy is released when they recombine. No energy is released when they recombine. Submit Request Answer
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Solution

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Solution Steps

Step 1: Understanding the Energy Involved in Chemical Reactions

In chemical reactions, energy is either absorbed or released. When water (\( \text{H}_2\text{O} \)) is split into hydrogen (\( \text{H}_2 \)) and oxygen (\( \text{O}_2 \)), energy is absorbed to break the chemical bonds. This process is known as electrolysis and requires an input of energy.

Step 2: Energy Release During Recombination

When hydrogen and oxygen recombine to form water, energy is released. This is because the formation of chemical bonds releases energy. The amount of energy released during the recombination of hydrogen and oxygen is equal to the energy required to break them apart, according to the principle of conservation of energy.

Step 3: Comparing Energy Absorption and Release

The energy released when hydrogen and oxygen recombine to form water is the same as the energy absorbed to separate them. This is because the process is essentially the reverse of the initial separation, and energy conservation dictates that the energy changes are equal and opposite.

Final Answer

\(\boxed{\text{The same amount of energy is released when they recombine.}}\)

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