Question

when amanda poured some of the liquid in a test tube, she noticed that the edges of the water curved upward, which is an example of
when pol filled another test tube to the top, the liquid formed a low dome, which is evidence of
when amanda added table salt to the first test tube and shook it, she noted that the liquid had dissolved the
all of these observations indicated the presence of bonds.
pol determined that the ph of the sample is 7, which shows the sample is
based on all of the evidence amanda and pol gathered, the unknown liquid is

Explanation:

1. Adhesion: When the edges of water curve upward in a test tube, it shows adhesion. Adhesion is the attraction between water molecules and the molecules of the test - tube material.
2. Cohesion: The formation of a low dome when the test tube is filled to the top is due to cohesion. Cohesion is the attraction between water molecules themselves.
3. Solute: When table salt (a solute) is dissolved in water (a solvent), the water acts as a solvent. In this case, the salt is the solute that gets dissolved.
4. Hydrogen: The properties of water (adhesion, cohesion, and its ability to act as a good solvent) are due to hydrogen bonds. Hydrogen bonds form between water molecules.
5. Neutral: A pH of 7 indicates that the solution is neutral.
6. Water: Based on all these properties (adhesion, cohesion, acting as a solvent, having hydrogen bonds, and being neutral), the unknown liquid is water.

Answer:

1. adhesion
2. cohesion
3. solute
4. hydrogen
5. neutral
6. water