How many moles is in 175.5g of nacl?

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Why are the trends and exceptions to the trends in ionization energy observed?

Word equation for k(s) +h2o(l) yield koh (aq) + h2