Question

ch. 24.1 guided reading what happens if the two positive protons are hot enough when they come near each other?

Explanation:

When two positive protons are hot (have high - enough kinetic energy) and come near each other, the electrostatic repulsion between them can be overcome. This allows the strong nuclear force to take effect, and they can undergo nuclear fusion to form a heavier nucleus, such as a deuteron (a proton - neutron combination in the first step of hydrogen fusion in stars).

Answer:

They can undergo nuclear fusion.