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Ira Lisetskai [31]
3 years ago
7

During an endothermic phase change, what happens to the potential energy and the kinetic energy?

Chemistry
2 answers:
Dovator [93]3 years ago
7 0
The correct answer should be that Potential energy increases, and kinetic energy increases, since they both increase as the temperature changes.
m_a_m_a [10]3 years ago
7 0

Answer:

D.) Potential energy increases, and kinetic energy stays the same

Explanation:

edge 2020

hope this helps!!

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If 1.3 L of C3H8 combusts according to the equation below, how much CO2 will be produced?
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Answer:

0.162 moles of CO₂ are produced by this reaction

Explanation:

The reaction is:

C₃H₈(g) + 5O₂(g)  →  3CO₂(g) +4H₂O(g)

As we have the volume of propane, we need to know the mass that has reacted, so we apply density's concept.

Density = Mass / Volume → Density . Volume = Mass

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We determine the moles → 2.379 g . 1mol / 44 g = 0.054 moles

Ratio is 1:3. 1 mol of propane can produce 3 moles of dioxide

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There are 3 different possible structures (known as isomers) for a dibromoethene molecule, C2H2Br2. One of them has no net dipol
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