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Maksim231197 [3]
2 years ago
11

3. Mothballs in a clothes closet gradually disappear over time. What happens to this material?

Chemistry
1 answer:
Svet_ta [14]2 years ago
4 0

Mothballs in a clothes closet gradually disappear over time, because their components sublime.

Mothballs are small balls of chemical pesticide and deodorant, sometimes used in closets where clothes are susceptible to damage from mold or moths. Mothballs are usually made of naphthalene, 1,4-dichlorobenzene or camphor. What all the compounds have in common is that they sublime at room temperature. Sublimation is a physical change in which matter changes from the solid to the gas state. Once the components are in the gaseous state, the diffuse, and that's why there are no visible remainings over time.

Mothballs in a clothes closet gradually disappear over time, because their components sublime.

You can learn more about sublimation here:

brainly.com/question/10936758

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9474 millimeters to centimeters using scientific notation showing work
puteri [66]

Answer:

9.474 x 10^2

Explanation:

ok. first you have to get the value in the required unit so 9474mm/(10mm/cm) = 947.4 so scientific notation states that the number must be raised to any power of an integer and the value of the number being raised must be less than than 10 and more than or equal to 1

so it must have one digit in front so.. 947.4 becomes 9.474 and because you move 2 places to the left, ur power is positive 2

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8 0
3 years ago
What is the best description of what Becquerel observed in his experiment?
myrzilka [38]

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5 0
3 years ago
Read 2 more answers
what is the kinetic energy of the emitted electrons when cesium is exposed to uv rays of frequency 1.4×1015hz?
Anika [276]
<span>The equation you used is KE=hv-hv0, where h=6.63*10^-34 (constant). You multiply h by 1.5*10^15. Multiply h by the threshold freq of cesium (from part A). Subtract the second answer from the first answer, and you get the kinetic energy. Hope this helps.</span>
7 0
3 years ago
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