A compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen by mass.
Which could be the molecular formula of this compound?
1 )
C$_2$H$_2$O$_2$
2 )
C$_2$H$_2$O
C$_2$H$_4$O$_2$
4 )
C$_2$HO$_2$
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!