What is the mass if the volume of the object is 75 cm3 and the density is 1.56 g/cm3?

Explanation:

We are asked to calculate the mass of an object. We are given the density and volume.  

Density is a substance's mass per unit volume. Therefore, the formula for calculating density is:

The density of the object is 1.56 grams per cubic centimeter. The volume of the object is 75 cubic centimeters. Substitute these values into the formula.

We are solving for the mass, so we must isolate the variable m. It is being divided by 75 cubic centimeters. The inverse operation of division is multiplication. Multiply both sides of the equation by 75 cubic centimeters.

The units of cubic centimeters cancel.

The mass of the object is 117 grams.

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.