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We often hear that shampoos are “pH balanced”. Research and describe the pH of skin, hair, and shampoo and explain how the “pH balanced” shampoo would work.

Explain the role acids and bases play in the digestive track of humans. Should a person who suffers from ulcers or acid reflux eat spicy foods or take antacids?

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Nonpoint source pollution is difficult to control because it

How is the shape of the poem “peer” connected to its meaning?