Question

HELP SCIENCE! I PUT MATH N DIDNT MEAN TO
1. which equation is balanced?

a) 2Na + O → Na₂O
b) 4Na + O₂ → 2Na₂O


a?
b?
a and b?
neither equation is balanced



2 which equation is balanced?


a) 4H₂ + Cl₂ ---> 2HCl
b) H₂ + Cl₂ ---> 2HCi


a?
b?
a and b?
neither?

Answer 1

b) 4Na + O₂ → 2Na₂O
b) H₂ + Cl₂ ---> 2HCi

Answer 2

the first question b is balanced
the second question b is balanced but it is 2HCl not 2HCi ;-)