What is a problem commonly associated with nuclear power facilities?

1 answer:

5 0

(1) False, lots of energy is actually produced from nuclear fuel, if we didn't get much then we probably wouldn't use it
(2) False, its burning coal that contributes to acid rain, since it contains sulfur
(3) False again, we can control the reaction with aptly named control rods, which are typically made of boron, to absorb some of the neutrons flying around in the chain reaction
(4) True, radioactive waste is very difficult to dispose of, and is also very dangerous. Sources of radiation can remain so for millions of years

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The oxidation numbers of nitrogen in NH4+, N2O5, and NaNO3 are, respectively:

Andrew [12]

-III I
NH₄⁺

V -II
N₂O₅

I V -II
NaNO₃
-----------------------

-3 +5 +5

6 0

3 years ago

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What concentration of benzoic acid will have a ph of 4.0? (for benzoic acid, pka=4.20)?

aalyn [17]

We are given the molar concentration of an aqueous solution of weak acid and the pH ofthe solution, and we are asked to determine the value of Ka for the acid.
The first step in solving any equilibrium problem is to write the equation for the equilibriumreaction. The ionization of benzoic acid can be written as seen in the attached image (1).
The equilibrium-constant expression is the equation number (2)
From the measured pH, we can calculate pH as seen in equation (3)
To determine the concentrations of the species involved in the equilibrium, we imagine that thesolution is initially 0.10 M in HCOOH molecules. We then consider the ionization of the acidinto H+ and HCOO-. For each HCOOH molecule that ionizes, one H+ ion and one HCOO- ionare produced in solution. Because the pH measurement indicates that [H+] = 1x 10^-4 M atequilibrium, we can construct the following table as seen in the equation number (4)
To find the value of Ka, please see equation (5):
We can now insert the equilibrium concentrations into the expression for Ka as seen in equation (6)
Therefore, 2.58x10^-4 M is the concentration of benzoic acid to have a pH of 4.0

7 0

4 years ago

When a fast moving particle runs into a slower moving particle what happens ?

Dvinal [7]

Answer:

It depends upon the mass of the particles also. Assuming equal mass, then the slower moving particle gains some energy, and the faster-moving particle loses energy. However, if the slower moving particle had greater mass, it could transfer energy to the faster-moving particle.

Explanation:

Hope I could help! :)

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3 years ago

Challenge: What cycle is represented in a food web? Explain your thinking.

natali 33 [55]

Food web shows the cycle of energy that is transferred from one organism to another in that web.

Explanation:

A food web (or nourishment cycle) is the natural interconnection of natural pecking orders and a graphical portrayal (generally a picture) of what-eats-what in an environmental network. Another name for nourishment web is customer asset framework.

Arrows on a food web, or food web, speak to the progression of vitality. The situation of the bolts in an evolved way of life or nourishment web is significant. The bolts consistently show the heading of the vitality as it is moved starting with one life form then onto the next. The progression of vitality can likewise be spoken to inside a vitality pyramid.

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4 years ago

Gases are very easy to compress. The best explanation for this is that

Simora [160]

Answer: gaseous molecules are far apart

Explanation:

One of the states in which matter exists is gas. Gases are made of up molecules that are far apart, travelling randomly and rapidly within the containing vessel.

Hence, they are easy to compress whereby they occupy limited space as the gaseous molecules are closely packed in vessels like cylinders and transported to places where they may be needed.

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4 years ago

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