Question

Chemistry
6 Chemical Reactions

please answer i need help

Answer 1

1) Change HCl into 2HCl

2) Change HCl into 2HCl

3) Change Al into 8Al, Fe3O4 into 3Fe3O4, Al2O3 into 4Al2O3 and Fe into 9Fe

4) Change HBr into 2HBr

5) Change NaI into 2NaI and Na2S2O3 into 2Na2S2O3

6) Change LaCl3 into 2Lacl3, Na2CO3 into 3Na2Co3 and NaCl into 6NaCl