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ASHA 777 [7]
3 years ago
13

What model did Rutherford make??

Chemistry
1 answer:
Rainbow [258]3 years ago
6 0
A model of the atom devised by Ernest Rutherford.
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What is the relationship between the internal energy of a substance and its particle movement?
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Answer: The closeness, arrangement and motion of the particles in a substance change when it changes state. Materials are a store of internal energy , due to the motion of particles and the chemical bonds between them. When a substance is heated, its internal energy increases: the movement of its particles increases.

Explanation:

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True or False. Solutions for which water is the solvent are called aqueous solutions.
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This is true. Water is the solvent in aqueous solutions
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What is the answer?
Dmitry_Shevchenko [17]

as a heterogeneous mixture

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An electrochemical cell has the following standard cell notation.
icang [17]

The cell notation is:

Mg(s)|Mg^{+2}(aq)||Ag^{+}(aq)|Ag(s)

here in cell notation the left side represent the anodic half cell where right side represents the cathodic half cell

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in cathodic half cell: reduction takes place [gain of electrons]

1) this is a galvanic cell

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E^{0}_{Mg}=-2.38V

E^{0}_{Ag}=+0.80V

Therefore

E^{0}_{cell}=0.80-(-2.38)=+3.18V

3) as the value of emf is positive the reaction will be spontaneous as the free energy change of reaction will be negative

ΔG^{0}=-nFE^{0}

As reaction is spontaneous and there will be conversion of chemical energy to electrical energy it is a galvanic cell.

7 0
3 years ago
(only reply if you know the answer or get reported) Please solve this ty​
kolezko [41]

Answer:

7) 50 8)4

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