Correct 2 Ca + O2 ------> 2CaO
2Ca(s) + O2(g) ----> 2CaO(s)
2Ca+O2---->2CaO
Solid
A pencil is a solid object.
a feather is a solid
The solid -> gas transition is called sublimation. The gas -> solid transition is called deposition.
No, a solid is a solid and a gas is a gas. They are two separate states of matter.
Changing directly from a gas to a solid is called deposition.Changing directly from a solid to a gas is called sublimation.
solid
General classes of colloids are: gas in liquid, gas in solid, liquid in gas, liquid in liquid, liquid in solid, solid in gas, solid in liquid, solid in solid.
gas