Question

What happens when
1. Iron is reacted with moist air.
2. hydrogen is reacted with oxygen.
3. sodium is reacted with Caroline. ​

Answer 1

#1.

• Ferric oxide will be formed

$\\ \sf\longmapsto Fe+H_2O\longrightarrow Fe_2O_3+H_2$

#2.

• It will produce water

$\\ \sf\longmapsto H_2+O_2\longrightarrow H_2O$