Answer and Explanation :
Generally the solutions are homogeneous in nature in a homogeneous mixture the component of the mixture are present in equal proportion in any solution there is two part one which is in larger amount is know as solvent and other part is solute in an aqueous solution as the name suggest the solvent part is always water
Example of aqueous solution is juice , coffee, river water , pond water etc
Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
Answer is: osmotic pressure.
The direction of osmotic pressure is always from the side with the lower concentration of solute to the side with the higher concentration, in this example, from solution b (5% glucose) to solution b (25% glucose).
Osmotic pressure, alongside the vapor pressure depression, freezing point depression and the boiling point elevation are the colligative properties od solution.
I think it’s C since the ice changes from solid to a liquid which is physical and then it reacts with calcium metal making the calcium hydroxide which is chemical change. And another sign of it being chemical was the release of gas.
Okay... what are the following
