Please answer both questions.

A.) How many moles of nickel will react with 9.91 mol of hydrochloric acid?

B.) How many moles of NiCl2 can be formed in the reaction of 8.00 mol of Ni and 16.0 mol of HCl?

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

Explanation for basic character?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged