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AP Physics 2/Unit 15 – Modern Physics
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Proton-Proton Chain Net Reaction
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In the proton-proton chain that powers the Sun, what is the net reaction after all intermediate steps?

A

⁴He → 4¹H + energy

B

¹H + ³He → ⁴He + energy

C

²H + ²H → ⁴He + energy

D

4¹H → ⁴He + 2e⁺ + 2νₑ + energy

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