...............

Asked by Sonal13 | 21st Jul, 2009, 03:48: PM

Expert Answer:

When calcium reacts with water it produce caciumhydroxide which is lighter  so it starts floating.

Answered by  | 22nd Jul, 2009, 11:27: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.