Question

Are these chemical equations in words correct?

Answer 1

And can atoms be replaced with "moles"?

Answer 2

yes! In a chemical reaction, we can replace the word atom or molecule, with mole

Answer 3

since a mole is an established number of atoms or molecules

Answer 4

Oh ok...wasn't sure about that

Answer 5

first reaction, I got this:
\[\Large 4Al + 3{O_2} \to 2A{l_2}{O_3}\]

Answer 6

Yes...that was what it was supposed to mean

Answer 7

we can read such equation like below:
4 moles of metallic aluminum plus three moles of molecular oxygen yeld two moles of aluminum oxide

Answer 8

or we can read it like below:
4 atoms of metallic aluminum plus three molecules of oxygen yeld two molecules of aluminum oxide

Answer 9

Should I add the word "metallic"?

Answer 10

if you want, it is not necessary

Answer 11

ok

Answer 12

second reaction, I think it is:
\[\Large 2Br + 2KI \to {I_2} + 2KBr\]

Answer 13

It was supposed to mean Br2 + 2KI --> 2KBr + I2

Answer 14

yes! I'm sorry, you are right!

Answer 15

third reaction:
\[\Large CuC{l_2} + N{a_2}S{O_4} \to 2NaCl + CuS{O_4}\]

Answer 16

CuCl2 + Na2S --> 2NaCl + CuS

Answer 17

yes! since I'm italian, sometimes I do some reading errors

Answer 18

fourth reaction:
\[\Large 2Fe + 3C{l_2} \to 2FeC{l_3}\]

Answer 19

Yes

Answer 20

:)

Answer 21

Thank you very much!

Answer 22

:)
sorry again for my previous errors!

Answer 23

No problem :)

Answer 24

:)