100 mL of a strong acid is completely neutralized by 100 mL of a strong base. The observed products are salt and water. Upon further investigation, the solution has a pH > 7. How is this possible?

A) The concentration of acid is the same as the concentration of the base.
B) The concentration of acid is higher than the concentration of the base.
C) The concentration of base is higher than the concentration of the acid.
D) The water autoionizes to give [OH-] ions.

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.

Which of these conditions most likely produces an unstable isotope?

Nonpoint source pollution is difficult to control because it