Some chemicals are acids and some are bases. We can test these chemicals with different indicators and determine if they are an acid or a base. Cabbage juice is an example of an acid-base indicator. If a solution of lemon juice is poured into purple cabbage juice, it will turn red. This indicates that it is an acid. If drain cleaner is added to cabbage juice, it will turn green indicating that it is a base. Other materials can also be used as indicators if they change color in the presence of an acid or base. Litmus paper and phenolphthalein are commonly used in a chemistry lab but many other plant materials such as beets, blackberries and blueberries will also work.

A student was given an unknown liquid. She tested it and recorded the following observations

Based on the information above, what was the most likely pH of the resulting solution?

3

5

7

12

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

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the right answer is c i just did the question.