Andrea is performing an experiment in which she needs to know when a strong acid is present. she is not sure which indicator to use, so she looks up the following table in her science textbook. indicator ph range thymol blue 1.2 - 2.8 phenol red 6.4 - 8.0 phenolphthalein 8.0 - 10.0 trinitrobenzoic acid 12.0 - 13.4 according to the textbook, which indicator should andrea use? hint: neutral substances have a ph of 7. acids have a ph that is less than 7, and bases have a ph that is greater than 7. a. phenolphthalein b. phenol red c. thymol blue d. trinitrobenzoic acid reset submit

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

What are fructose and glucose an example of?

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules