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expeople1 [14]
3 years ago
13

Which changes of state result in a decrease in the kinetic energy of the particles?

Chemistry
1 answer:
scZoUnD [109]3 years ago
7 0
Liquid into solid, gas into a liquid, gas into a solid (deposition).
Kinetic energy is all about motion. If you think about it, the particles are going from a more chaotic state to a more orderly arrangement which reduces the kinetic energy. 


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Which of the following reactions are redox reactions? 4Li(s)+O2(g)→2Li2O(s) Zn(s)+Cu2+(aq)→Zn2+(aq)+Cu(s) Sr(NO3)2(aq)+Na2SO4(aq
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Answer:  

As2O3 → H3AsO4

As2O3 → 2H3AsO4             balance As

5H2O + As2O3 → 2H3AsO4       balance O by adding H2O to one side

5H2O + As2O3 → 2H3AsO4 + 4H+    balance H by adding H+ to one side

5H2O + As2O3 → 2H3AsO4 + 4 H+ + 4e-     balance charge by adding electrons to one side

 

Now do the same for the other part of the reaction

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NO3- → NO + 2H2O

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Now cancel the electrons by multiplying the first equation by 3 and the second equation by 4, then add them together .

 

3As2O3 + 4NO3- + 7H2O + 4H+ → 6H3AsO4 + 4NO

4 0
3 years ago
Asuming all orbitals are in the same energy level which type of orbital has the lowest energy?
Virty [35]

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