How many formula units are in 17.55 moles of NaCl2

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

Is a pencil falling to the floor anon contact force, a force, or a contact force

What happens to the temperature of a substance when the average kinetic energy of its particles increases?