77) Oil spills in the ocean often treated with chemical : 1380710

77) Oil spills in the ocean often treated with chemical : 1380710.


77) Oil spills in the ocean are often treated with chemical dispersants. These materials are similar to detergents in that the molecules have both hydrophilic and hydrophobic portions. Based on this, predict what will happen when chemical dispersants are used to treat oil spills.


78) You have been having trouble with acid indigestion recently. You buy some milk of magnesia, an antacid, from the drug store to relieve your indigestion. Milk of magnesia is a mixture of magnesium hydroxide in water. What makes milk of magnesia a good antacid? If you could chemically analyze your stomach fluids, what would you find before and after taking the antacid?

Refer to the figure below, and then answer the question that follows.



79) Hydrogen, deuterium, and tritium are considered the same element because:

A) their mass is about the same.

B) they can form ions easily.

C) they have the same number of protons.


Refer to the figure below, and then answer the question that follows.



80) Which of the following molecules is most likely to bind to an ion, and why?

A) Molecule A, because it has electrical charges that will attract an ion

B) Molecule B, because it has four hydrogen atoms on the exterior of the molecule

C) Molecule A, because any molecule with oxygen is able to bind to an ion

D) Molecule B, because it has a carbon at in the center of the molecule

Refer to the figure below, and then answer the question that follows.



81) You are working in a chemistry lab, and your lab partner knocks over a beaker of hydrochloric acid. You alert your laboratory instructor, and he immediately pours another solution over the spill to neutralize the acid. Using the figure as a guide, what did your instructor pour onto the acid to neutralize it?

A) water

B) baking soda

C) lemon juice

D) coffee



77) Oil spills in the ocean often treated with chemical : 1380710

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