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arlik [135]
3 years ago
14

Which statement is correct about the law of conversation of energy

Chemistry
1 answer:
Elden [556K]3 years ago
6 0

Answer:

Energy is transferred when atoms are rearranged.

Explanation:

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What is the difference between a homogeneous and a heterogeneous mixture?
Ne4ueva [31]

Answer and explanation :

DIFFERENCE BETWEEN HOMOGENEOUS AND HETEROGENEOUS MIXTURE :

  • In homogeneous mixture the component which are present in the mixture all are in the same proportion whereas in heterogeneous mixture the component which are present in the mixture don't have the same proportion
  • We can not pick out the component of homogeneous mixture but in heterogeneous mixture we can pick out the components from the mixture
  • Example of homogeneous mixture is water, oil ,water sugar solution, milk  blood etc. And example of heterogeneous mixture is solution of sand and water ,concrete etc.
7 0
3 years ago
A voltaic cell is constructed from an Ni2+(aq)−Ni(s)Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s)Ag+(aq)−Ag(s) half-cell. The in
eduard

Answer:

+1.03 V

Explanation:

The standard emf of the voltaic cell is the value of the standard potential of it, which is calculated by the standard reduction potential (E°).

The standard reduction potential is the potential needed for the reduction reaction happen, and it's determined by the reaction with the hydrogen cell (which has E° = 0.0V). The half-reactions of reduction of Ni⁺² and Ag⁺, are:

Ni⁺²(aq) + 2e⁻ → Ni(s) E° = -0.23 V

Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V

The value is calculated by a spontaneous reaction, in which the cell with the greater E° is reduced (gain electrons), and the other is oxidized (loses electrons). So, Ag⁺ reduces.

emf = E°reduces - E°oxides

emf = 0.80 - (-0.23)

emf = +1.03 V

8 0
3 years ago
_______ collect the light from distant stars and separate that light into bands of different colors. This allows astronomers ide
olga2289 [7]
The answer to your question is A.
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2 years ago
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3 0
3 years ago
_______are something you can process with your 5 senses.​
andreyandreev [35.5K]

Answer:

Food cooking and eating food

Explanation:

You can smell the food, you need to use your eyes to see if its cooked, raw, etc. You need to touch the pan to move it or see if its hot. You can hear the food sizzling or bubbling. And you need to taste the food to see if its good or not

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3 years ago
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