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Dennis_Churaev [7]
3 years ago
6

On the celsius scale, at what temperature does water boil?

Chemistry
1 answer:
Gnom [1K]3 years ago
6 0
Simple....

On the celsius scale, at what temperature does water boil? 

---->>>

D.)100

Thus, your answer.

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A vice, you can tighten it and then work on what is held in it without having to hold it still or in the position you want. 
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Calculate the heat energy required to melt 4kg of ice when the specific latent heat of fusion of water is 334,000 J/kg.
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Taking into account the definition of calorimetry and latent heat, the heat energy required to melt 4 kg of ice when the specific latent heat of fusion of water is 334,000 \frac{J}{kg} is 1,336 kJ.

<h3>Calorimetry</h3>

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

<h3>Latent heat</h3>

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

The heat Q that is necessary to provide for a mass m of a certain substance to change phase is equal to

Q = m×L

where L is called the latent heat of the substance and depends on the type of phase change.

<h3>Heat energy required to melt ice</h3>

In this case, you know:

  • m= 4 kg
  • L= specific latent heat of fusion of water= 334,000 \frac{J}{kg}

Replacing in the expression for latent heat:

Q = 4 kg× 334,000 \frac{J}{kg}

Solving:

<u><em>Q= 1,336,000 J= 1,336 kJ </em></u>(being 1,000 J= 1 kJ)

Finally, the correct answer is the first option: the heat energy required to melt 4 kg of ice when the specific latent heat of fusion of water is 334,000 \frac{J}{kg} is 1,336 kJ.

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Why might two elements posses similar chemical properties?​
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Same number of valence electrons

Explanation:

Two elements posses similar chemical properties if they have the same number of valence electrons.

Chemical properties of any substance is determined by the number of valence electrons it possesses in its outer most shell.

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Elements with the same number of valence electrons will chemically combine the same way.

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The anticodon is the three-base code on the tRNA molecule that binds to the codon on mRNA. What is the associated codon for the
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So it would be the complimentary base pairing, meaning that the codon must have been:
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Name six metaloids ​
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Answer:

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Explanation:

hope this helps you (^ω^)

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