How many atoms of potassium would you have if
measured out 6.83 grams of the element?

The number of atoms is 6.83 grams of potassium is .

Explanation:

Mass of the potassium element = 6.83 g

Atomic mass of potassium = 39.10 g/mol

Moles of potassium =

According to mole concept :

1 mole = atoms/ions/ molecules

Total number of atoms of potassium in 0.175 moles:

So, number of atoms is 6.83 grams of potassium is .

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.