Insoluble means that a substance does not dissociate in another, like mixing water and oil.
In an unsaturated solution, the solute does dissociate into solution but there is more "room" in the solution to hold more. Say if you have an amount of water that can dissolve 20g of salt but you only have 15g dissolved in it, that solution is unsaturated.
Answer:
hello your question is incomplete attached below is the complete question
answer : attached below
Explanation:
The Lewis structure given in the question is incorrect attached below is the correct Lewis structure.
Lewis structure of a molecule is the representation of the valence electrons in a molecule
Answer: The density of kerosene is 
Explanation:
Density is defined as the mass contained per unit volume.
Given : Mass of kerosene = mass of beaker with kerosene - mass of empty beaker = 60 g - 20 g = 40 g
Volume of kersone =
Putting in the values we get:
Thus the density of kerosene is 
Because it has more protons than electrons. Protons are positive so if there is more of them than electrons, the ion will have a positive charge.