Part b compute 1240.64/64. round the answer appropriately express your answer numerically using the proper number of significant figures. view available hint(s) submit

19

Explanation:

1240.64/64

This is a simple division that can easily be evaluated using any form of calculator.

Here, the main challenge is in expressing the answer in the proper number of significant figure.

The approach here is to express the answer to the which is least precise. This is usually the number with the lower significant values.

Here, 64 has two significant figures and it is of a lower rank. Our answer should be expressed this way:

      = 19.385 = 19

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.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.