Question

Which element(s) are not balanced in this equation?

Fe2O3 + 3 CO → Fe + 3 CO2

A.
Only the Fe is unbalanced.

B.
Only the O is unbalanced

C.
Fe and O are both unbalanced.

D.
C and O are both unbalanced

Answer 1

@I_Always_Smiling @Mesopretty help me sisters

Answer 2

@I_Always_Smiling

Answer 3

Any guesses so far?

Answer 4

@Tootles143

Answer 5

jordan tag meso and others

Answer 6

no jordan i got nuthing

Answer 7

@amberxoxo

Answer 8

Im here...

Answer 9

@Librarian @Mesopretty

Answer 10

NO CLUE.... :{

Answer 11

im herreee

Answer 12

ok i will figure this out i promise

Answer 13

@brittanydosey

Answer 14

ok its C

Answer 15

thanksthree more stay on

Answer 16

yeah its c

Answer 17

ok

Answer 18

Nitrogen gas (N2) and hydrogen gas (H2) combine to form ammonia (NH3). Which equation correctly represents this reaction?

A.
N + H → NH

B.
2N2+ H2 → 3NH3

C.
2NH → N + 3H2

D.
N2+ 3H2 → 2NH3

Answer 19

ok its D

Answer 20

kk hold on

Answer 21

kk

Answer 22

Chromium (Cr) can combine with chlorine (Cl2) to form chromium chloride (CrCl3). Which equation is a correct representation of this reaction?

A.
Cr + Cl2→ CrCl3

B.
2Cr + Cl2→CrCl3

C.
2Cr + 3Cl2→CrCl3

D.
2Cr + 3Cl2→ 2CrCl3

Answer 23

@amberxoxo

Answer 24

ok its D

Answer 25

one more

Answer 26

Iron forms rust, expressed as: Fe2O3. Using information from the Periodic Table, what is the mass of one mole of Fe2O3?

A.
71.85 g

B.
143.70 g

C.
159.70 g

D.
319.40 g

Answer 27

C. 159.70

Fe=55.85g/mol * 2 = 111.70
O=16.00g/mol * 3 = 48.00
+_______
159.70

Answer 28

u smart girlly

Answer 29

lol u dumb

Answer 30

jk