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Anarel [89]
3 years ago
13

PLEASE HELP FAST!! How much energy (in calories) is need to melt 3.0 moles of ice?

Chemistry
1 answer:
Viktor [21]3 years ago
4 0

Answer:

Energy

Explanation:

The heat required to change the phase of a substance is given by the equation:

Q= mL (Q= Heat required, m= mass, L= Latent Heat of Fusion/Evaporation/Anything else).

So, according to your values:

Q= 3.0 kg x 333 kJ/Kg

So, Q= 999 kJ

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O1S. Answer the following questions using Boyle's law:
Olenka [21]

Answer: 0.5 atm

Explanation:

you would want to use Boyles law which is P1P2=P2V2

or in this case, 1.00atm x 5.00L=P2 x 10.0L

                       1.00x5.00/10.00= 0.50atm

3 0
2 years ago
In the northern hemisphere, the wind blows clockwise around centers of high pressure. The wind blows counterclockwise around low
STatiana [176]
Since you're only asking for the last 3 items, here are the answers:
3. Maine is located in the northern hemisphere. If there is a high pressure, the wind is blowing clockwise. If there is a low pressure, the wind direction will be in the opposite direction.

4. Colorado is in the northern hemisphere. If there is a low pressure, the wind is going counterclockwise. If there is a high pressure, the opposite is true.

5. There is no map so I can't give you the exact answers.
8 0
3 years ago
What is the mass of 4.32 mol GaI3?<br><br> A. 455 g<br> B. 1,230 g<br> C. 1,720 g<br> D. 1,950 g
Sliva [168]
The answer is D.1.950 g

The sponsoring editor for this book was Kenneth P. McCombs and the production supervisor was Sherri Souffrance. It was set in Times Roman by International Typesetting and Composition. The art director for the cover was Anthony Landi. Printed and bound by RR Donnelley.

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5 0
3 years ago
Read 2 more answers
A beaker contains 500 ml of 2.40M KNO3 the beaker is left uncovered so that all of the water evaporates. What mass of KNO3 cryst
telo118 [61]

Answer:

242.4 g

Explanation:

RAM of KNO3=39+14+(16×3)=101

Mass=morality×RAM

101*2.4=242.4

6 0
2 years ago
Bruh Im 4th on the leaderboard How is this possible
forsale [732]

Answer:

I guess you just answered a lot of questions

Explanation:

Thanks for the points btw :)

4 0
3 years ago
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