which type of reaction occurs in the core of a nuclear reactor in a nuclear power plant?\no hcl + naoh → h₂o…

Brief Explanations:

In a nuclear power - plant reactor core, nuclear fission occurs. Nuclear fission is the splitting of a heavy nucleus into lighter nuclei. The reaction $\ce{^{235}{92}U + ^{1}{0}n\rightarrow^{90}{38}Sr + ^{143}{54}Xe+3^{1}{0}n}$ represents a uranium - 235 fission reaction where a uranium - 235 nucleus absorbs a neutron and splits into strontium - 90, xenon - 143, and three neutrons. The first reaction is an acid - base neutralization ($\ce{HCl + NaOH\rightarrow H2O+NaCl}$), the third is the reverse of fission (not occurring in a reactor core), and the fourth is a combustion reaction ($\ce{C{10}H_{8}+12O_{2}\rightarrow10CO_{2}+4H_{2}O}$).

Answer:

$\ce{^{235}{92}U + ^{1}{0}n\rightarrow^{90}{38}Sr + ^{143}{54}Xe+3^{1}_{0}n}$