Dr. Lopez studies the cells of oak trees that grow on steep hills. He is learning how the trees can support themselves and get enough food. The trees have very different needs than animals. Describe two structures found in plant cells but not in animal cells. How do these structures help plant cells to meet a plant’s needs?

9

Explanation:

One of the properties common to all acids is reaction with metals. Dilute acids react with metals to form the corresponding metal salt and hydrogen gas. Since the solution could either be an acid or base, once it does not react with a metal, we can conclude that it is a base and should be the solution having a pH of 9.