Which quantity can be correctly represented by the symbol "He"? 1
1 mole of atoms
2
10 grams of atoms
3.
3 x 1023 atoms
4
11.2 liters of atoms

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

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.