You begin pouring sodium chloride into a glass of water. for a long time, the sodium chloride just dissolves in the water, but suddenly it begins to pile up at the bottom of the glass. which statement is true?

The options are:

A. The sodium chloride has increased the temperature of the water.

B.he sodium chloride has decreased the temperature of the water.

C.The water is unsaturated.

D. The water is saturated

D

Explanation:

An unsaturated solution is one that doesn't have as much solute as it could take. This is the reason why the sodium hydroxide kept dissolving as it was added until at a point where the solution has taken as much solute as it could hold.From that point any additional sodium hydroxide added wont dissolve and would pile up at the bottom of the glass

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .