Question

Which of the following is not a correct formula unit?
Select one:
a. MgO
b. Ca2N3
c. KCl
d. Li3N

Answer 1

@Hero is this A I just want to make sure Im correct.

Answer 2

Should this be in chemistry?

Answer 3

yea but no one ever helps me there so I just post in math and I get a lot of people to help me this way.

Answer 4

lol

Answer 5

Can you help?

Answer 6

not off the top of my head but ill try to figure it out

Answer 7

ok:)

Answer 8

KCl is wrong because the charge on K is +2 so it should be KCl2

Answer 9

i dont think so

Answer 10

Ca2N3 is wrong i think

Answer 11

Why?

Answer 12

KCI is Potassium chloride

Answer 13

Closest thing i could find to Ca2N3 was calcium nitride, which is Ca3N2

Answer 14

hmm. so there are tree answers we are debating about right?

Answer 15

yep, lol, if its not an assessment guess :)

Answer 16

otherwise from what i can see it is commonly misunderstood that Ca3N2 is Ca2N3

Answer 17

so should I pick B then?

Answer 18

i would :)

Answer 19

thnx man I just turned my test in and I got it correct

Answer 20

can u medal :)

Answer 21

thanks