QUESTION: Fix punctuation: He predicted mathematically in 1931 that conservation laws required the existence of a new particle which he proposed to call the neutron
ANS: He predicted mathematically, in 1931, that conservation laws required the existence of a new particle which he proposed to call the "neutron".

QUESTION: Fix punctuation: H2 the height of the wall to the right
ANS: H2 - the height of the wall to the right

QUESTION: Fix punctuation: Biblical repentance is changing your mind about Jesus Christ and turning to God in faith for salvation Acts 319
ANS: Biblical repentance is changing your mind about Jesus Christ and turning to God in faith for salvation (Acts 3:19).

QUESTION: Fix punctuation: Each villa has a small garden and private swimming pool with heating system astral Pool
ANS:
Each villa has a small garden and private swimming pool with heating system (astral Pool).