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inn [45]
4 years ago
9

Identify and describe 2 changes of state that release energy

Chemistry
1 answer:
soldier1979 [14.2K]4 years ago
4 0

Answer: All changes of state involve the transfer or energy

Explanation: i got my information from this site

https://www.esrl.noaa.gov/gmd/education/info_activities/pdfs/CTA_the_water_cycle.pdf

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Help!!!
Vedmedyk [2.9K]

Answer:

3.213J/mol

Explanation:

first specific heat capacity of water = 4200J/Kg K

Q=mass×temperature difference×specific heat capacity

Q=1.53×(24.3-20)×4200

Q=25.704 J

heat of solution= quantity of heat ÷ amount of substance

heat of solution= 25.704÷8

heat of solution= 3.213J/mol

8 0
3 years ago
Balancing equations<br> C2H5OH + O2 —&gt; CO2 + H2O
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Answer:

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If you’re asking if this is true or false, it is false . A HOMOGENEOUS mixture is one the where the substances are evenly distributed and have a uniform composition, while a HETEROGENEOUS mixture is uneven and the substances are part from each like oil and water.
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stellarik [79]

6 grams/cubic centimeter

6 0
3 years ago
¿Cuál es la valencia del nitrogeno?
stepladder [879]

Answer:

número atómico :7

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Read 2 more answers
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