Which of the following occurs when the weak base ammonia, NH3, is dissolved in water?
A) A very small number of ammonia molecules break up.
B) A very small number of ammonia molecules take an H+ from the water.
C) A very small number of molecules of NH4OH are formed.
D) A very small number of water molecules take an H+ from ammonia.
B
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A) SiO24- B) S- C) Cl-, F-, Br- D) CO32- E) SO42-
It is easier to estimate coal reserves than oil reserves because coal is solid and does not migrate.
Answer the following statement true (T) or false (F)
Plate tectonics is a unifying idea that helps explain where and why there are ____ on earth.
Fill in the blank(s) with the appropriate word(s)
Lenticular clouds form on the ____________________ side of mountains
Fill in the blank with correct word.