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shusha [124]
2 years ago
12

How much energy is required to completely melt a 250 gram ice cube that is already at 0 degrees Celsius? Show your work & un

its. Expected Answer = 83,500 J

Chemistry
1 answer:
patriot [66]2 years ago
7 0

Answer:

Q = 83500J

Explanation:

Q = L_{ice} *m

L_{ice} = 3.34*10^{5} \frac{J}{kg}

m = 250g = 0.25kg

Q = (3.34*10^{5} \frac{J}{kg})*(0.25kg)

Q = 83500J

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We can tell which acid which have the highest percent ionization on the basis of pH value.

<h3>What is percent ionization?</h3>

The % ionized indicates how much of the original chemical has ionized. As a result, we compare the ion concentration in solution to the neutral species' original concentration.

If any acid have a high pH value then they must show high percent ionization because they are strong in nature and show full dissociation.

Hence acids with high pH value will show highest percent ionization.

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2 years ago
Explained how natural factors have changed the surface and atmosphere of the Earth over time?
Ne4ueva [31]

Answer:

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2 years ago
There are 55.0 g of neon gas in a 3.0 L cylinder, the pressure is 4.5 atm what is the temp of the gas
marshall27 [118]

Answer:

60.9 Kelvin

Explanation: First, write out everything that you know. You are tring to find the temperature, so the temperature will be represented by x.

Pressure (P)= 4.5 atm

Volume (V)= 3L

Number of Moles (n)= ?

Gas Consant (R)= 0.0821, if the pressure is in atm, that means r is 0.0821

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We don't have all the information we need to plug the values into the equation. We still need to know how many moles 55.0 grans of neon is.

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Now that we have all the information we need, plug everying into the equation. In case you don't know, the Ideal Gas Law Equation is PV= nRT.

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4 0
3 years ago
Given : 4.50 molte
Lelu [443]
You would get 35.................
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2 years ago
Why can a liquid take shape of the bottom of its container
Anna71 [15]
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4 0
3 years ago
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