How can i tell the difference between a single-replacement reaction and a double replacement reaction?

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

How many grams of n2h4 will be consumed by 23 g of n2o4

Why did southern business leaders want to increase the number of slaves