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Dmitry_Shevchenko [17]
3 years ago
8

Is gasoline evaporated a chemical change

Chemistry
2 answers:
Len [333]3 years ago
5 0
No. The only thing that changed was the looks of the gasoline, not the chemical components.
boyakko [2]3 years ago
5 0

Answer:

The correct answer is No

Explanation:

A chemical change is often characterized by the following

  • new substance is formed
  • not easily reversible
  • in most cases, process are represented by a chemical equation

The evaporation of gasoline does not meet any of the characteristics above. When, a gasoline evaporates, it is converted from it's liquid form to it's gaseous form hence <u>no new substance is formed</u>, and if this conversion is done in a controlled environment, the <u>gaseous form can be easily reversed back to it's liquid form</u> by cooling. There is <u>no chemical equation needed for this process</u> since no new substance is formed.

Because of the reasons provided earlier, evaporation of gasoline is a physical change and not a chemical change.

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Name the phase change in each of these events: (c) Wet clothes dry on a summer day
8090 [49]

The phase change occurs during evaporation. On a hot day, wet clothing is drying. A liquid becomes a gas when it evaporations.

During the process of evaporation, a liquid transforms into a gaseous phase that is not saturated with the evaporating substance. The term "vaporization of a liquid" refers to this process. Clothes start to dry as water vapor escapes from the fabric's surface.

<h3>What is evaporation?</h3>

A liquid turns into a gas through the process of evaporation. Raindrops that "vanish" on a hot day or damp clothing that dries in the sun are good examples of the phenomena. In these instances, the liquid water is evaporating into a gas known as water vapor rather than really dissipating. Global evaporation takes place.

Learn more about evaporation: brainly.com/question/5019199

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5 0
2 years ago
Alpha particle radiation will most likely result when
Marianna [84]

Answer:

electrons gain energy

Explanation:

6 0
3 years ago
Calculate the pH and pOH of 500.0 mL of a phosphate solution that is 0.285 M HPO42– and 0.285 M PO43–. (Ka for HPO42- = 4.2x10-1
jekas [21]

Answer: when concentrations of acid and base are same, pH = pKa

PH = 12.38 pOH = 1.62

Explanation: pKa= -log(Ka)= 12.38. PH + pOH = 14.00

8 0
4 years ago
Which of the following is a potential exception to cell theory? Choose 1 answer: Fungal spore Asexual reproduction Mitochondria
Fynjy0 [20]

Answer:

Asexual reproduction

Explanation:

Cells are able to re produce themselves without other cells needed. If cells need others to make more then how would that work and plus we wouldn't have the theory of cells existing.

4 0
3 years ago
Mexico City has an elevation of 7400 ft above sea level. Its normal atmospheric pressure is 589 mm Hg. At what temperature does
IRISSAK [1]
Given that the volume and amount  of water are kept constant,
P/T = constant
P₁/T₁ = P₂/T₂
Normal atmospheric pressure is 746 mmHg and normal boiling point of water is 100 °C.
746/100 = 589/T₂
T₂ = 79.0 °C
5 0
3 years ago
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