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GR8 Sci 67R Earth Science Review FY21 Question: 1-9
Shoals are raised landforms made of sand and gravel that are commonly found in Florida. They are often called sandbars and are located in and around bodies of water such as oceans, rivers, and takes Which factor most
commonly causes shoals to form or change shape?
the motion of glaciers
the motion of large boats
the motion of wind and waves
the motion of Earth's mantle and crust

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Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.