Answer: W
Explanation:
The cell in liquid W will look the smallest out of the four because of Osmosis.
Osmosis is a process by which water molecules move from an area of relatively higher concentration of water to an area with a relatively lower concentration through a selectively permeable membrane(cell membrane).
With W being saltier than the cell, water molecules will move from the cell to liquid W to balance the concentrations inside and outside the cell which will lead to the cell in W being smaller.
Answer:
B
Explanation:
That electron is found in the 3d orbital.
ml=-2,-1,0,1,2
n=3
l=2
ml=0
ms=-1/2
Since it must be of opposite spin according to Pauli exclusion principle.
Answer: 3.86x10^24 molecules
Explanation:
From Avogadro's hypothesis, we understood that 1mole of any substance contains 6.02x10^23 molecules.
This means that 1mole of H2O contains 6.02x10^23 molecules.
Therefore, 6.42 moles of H20 will contain = 6.42 x 6.02x10^23 = 3.86x10^24 molecules