Answer:
It is Likely to Be Sodium (Na) coz as You Down The group the reactivity increase
use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.
The balanced equation for the decomposition of solid lead iv oxide is as follows: 2PbO2 = 2PbO + O2.
Lead IV oxide decompose to give lead ll oxide and oxygen. Lead iv oxide is thermally unstable and it usually decomposes into oxygen and lead ll oxide when heated. Lead ll oxide is more stable than lead lV oxide.
D. due to the the water it will bring sand with the water there for us is D.
