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VladimirAG [237]
3 years ago
15

What is unique about Pluto's orbit around the sun?

Chemistry
2 answers:
solniwko [45]3 years ago
6 0
I would say D For is goes into Uranus orbit.
Leona [35]3 years ago
5 0

Answer: most elliptical orbit

Explanation:                    

Pluto is a dwarf planet which lies beyond Neptune. It is the first object in the Kuiper belt which was found by Clyde Tombaugh in 1930. Pluto's orbit is 17° tilted and it does not lie in the same plane as other planets revolve around Sun. It takes 248 years for Pluto to complete one orbit. Its orbit is most elliptical in nature.

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Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react
son4ous [18]

Answer:

ΔH  = - 272 kJ

Explanation:

We are going to use the fact that Hess law allows us to calculate the enthalpy change of a reaction no matter if the reaction takes place in one step or in several steps. To do this problem we wll add two times the first step to second step as follows:

N2(g) +         3H2(g) →          2NH3(g)                 ΔH=−92.kJ  Multiplying by 2:      

2N2(g) +       6H2(g) →          4NH3(g)                        ΔH=− 184 kK

plus

4NH3(g) +     5O2(g) →          4NO(g) +6H2O(g)        ΔH=−905.kJ

__________________________________________________

2N2(g) +   6H2(g) + 5O2(g)→  4NO(g)  + 6H2O(g)      ΔH = (-184 +(-905 )) kJ

                                                                                     ΔH =    -1089 kJ

Notice how the intermediate NH3 cancels out.

As we can see this equation is for the formation of 4 mol NO, and we are asked to calculate the ΔH  for the formation  of one mol NO:

-1089 kJ/4 mol NO  x 1 mol NO =  -272 kJ (rounded to nearest kJ)

5 0
3 years ago
In what ways are the two designs in part C different? How do you think these differences will relate to the ability of each desi
Ilya [14]
The top one is different from the bottom because of is curvature shape while the bottom one is a square shape i think the bottom will heat up faster because of the nice even area inside where heat waves can evenly flow
4 0
2 years ago
Why do you think the placebo effect works
timurjin [86]

Answer:

The placebo effect is when an improvement of symptoms is observed, despite using a nonactive treatment. It’s believed to occur due to psychological factors like expectations or classical conditioning.

Research has found that the placebo effect can ease things like pain, fatigue, or depression.

hope this will help u :)

7 0
2 years ago
Alkyl halides are formed by the replacement of one or more hydrogen atoms of an aliphatic hydrocarbon with _______.
enot [183]
Given by the name of these compounds, they are formed if one or more hydrogen atoms are substituted for halogens

X = Cl, Br, I, F
3 0
2 years ago
Please help
Pachacha [2.7K]
1. C : Mg(CN)2
2. B : N2O5
3. D : Ti(ClO4)3
4. A : Ni(NO3)3
5. D : Cobalt (III) Acetate
6. B : Nickel(II) sulfate
7. C : Dinitrogen Tetrafluoride
8. A : Phosphorus pentachloride<em />
9. C : Metallic <em>(<!> This is the only one I'm not 100% sure of)</em>
10. A : Ionic
11. C : Metallic
12. B : Covalent
5 0
3 years ago
Read 2 more answers
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