Question

question 15
1 pts
what is the net result of the proton - proton chain?
2 protons and 2 neutrons are fused into 1 carbon + energy
2 heliums are fused into 1 carbon + energy
2 hydrogens and 1 helium are fused into 1 carbon + energy
4 hydrogens are fused into 1 helium + energy

Explanation:

The proton - proton chain is a nuclear fusion process that occurs in stars like the Sun. In this process, four hydrogen nuclei (protons) combine. Through a series of reactions, they form a helium nucleus and release energy.

• Option 1: Carbon is not formed from 2 protons and 2 neutrons in the proton - proton chain.
• Option 2: Helium is a product, not a reactant in the basic proton - proton chain for forming helium.
• Option 3: Hydrogen is the main reactant, and helium is formed, not carbon from 2 hydrogens and 1 helium.
• Option 4: The net result of the proton - proton chain (a series of reactions) is that 4 hydrogens (protons) are fused into 1 helium nucleus along with the release of energy.

Answer:

4 hydrogens are fused into 1 helium + energy.