Would you like to ________?
A:try it on
B:try on it
C:try they on
D:try on them
图1 图2
已知A2On2﹣可将B2﹣氧化为B单质,A2On2﹣则被还原为A3+,又知100mL的0.3mol/L的A2On2﹣与150mL的0.6mol/L B2﹣恰好完全反应,则A2On2﹣中的n值为( )
看图写算式。
____