2 X(s) + 2 H2O() → 2 X+(aq) + 2 OH–(aq) + H2(g)
2 Y(s) + 2 H2O() → 2 Y+(aq) + 2 OH–(aq) + H2(g)
The unknowns, X and Y, are most likely
A) metallic elements in the same group
B) metallic elements in the same period
C) nonmetallic elements in the same group
D) nonmetallic elements in the same period
更新1:
2 X(s) + 2 H2O(liquid) → 2 X+(aq) + 2 OH–(aq) + H2(g) 2 Y(s) + 2 H2O(liquid) → 2 Y+(aq) + 2 OH–(aq) + H2(g)
