Answer:
D. Flooding occurs when too much rain falls upstream.
Explanation:
Flooding is not a change in a watershed.
A, B, and C are wrong. They all represent changes in a watershed.
Answer:
72.0 mL of steam is formed.
Explanation:
The reaction is :

You can treat coefficient of compounds as amount of volume used.
Therefore for 4 mL of ammonia 5 mL of oxygen is used to form 4 mL of nitric oxide gas and 6 mL of steam.
For 1 mL of ammonia
(=1.25) mL of oxygen is used to form
(=1) mL of nitric oxide gas and
(=1.5) mL of steam.
OR
Just transform the chemical equation by dividing the whole equation by 4 so that the coefficient of
become one like this

We don't know which one will be completely exhausted and which one will be left so we have to consider two cases :
<em>1. </em><em>Assume ammonia to be completely exhausted</em>
For 50 mL of ammonia
(= 62.5) mL of oxygen is needed. But we have just 60 mL of oxygen so this assumption is false.
2. <em>Assume oxygen to be completely exhausted</em>
For 60 mL of oxygen only
(=48) mL of ammonia is needed. In this case we have sufficient amount of ammonia. So this case is true.

Now we know that during complete reaction 48 mL of ammonia and 60 mL of oxygen is used which will form
(= 48) mL of nitic oxide gas and
(= 72) mL of steam.
Therefore <em>72 mL of steam </em>is formed.
The "sea of instability" refers to a region of elements on the periodic table that are highly unstable. These elements have extremely short half-lives that may be measured in micro- or nanoseconds. (A nanosecond is the time it takes for light to travel one foot.) This region of unstable elements surrounds the island of stability.
Answer:
The question is incomplete. The mechanism is not included in your question. The attached file contains the mechanism and the proposed mechanism.
Explanation:
See the attached file for the structure.
Answer:
Torrey's neighbour is incorrect because increase in kinetic energy is proportional to velocity. If the velocity increases so will the object's kinetic energy. Because the mass is constant, if the velocity increases, so does the kinetic energy.