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lara31 [8.8K]
3 years ago
14

Why does fingernail polish float on top of water?​

Chemistry
1 answer:
7nadin3 [17]3 years ago
5 0
Difference in density between the two liquids
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How do moving plates change Earth's crust?
Serhud [2]
It changes because when the 2 tectonic plates collide they form mountains and volcanoes.

Continental drift causes tectonic plates to either "pull apart" or "crash" into each other.

Plates that crash into each other either form mountains, or when one slides under the other (a subduction zone) volcanoes from.
8 0
3 years ago
Compounds are neutral substances. true false
Karolina [17]
True 
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3 years ago
When oil and water are mixed vigorously, the oil is broken up into tiny droplets that are dispersed throughout the water. this d
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4 0
2 years ago
@ What is the wavelength of a radio wave having a frequency of 3.75 X 107 Hz?
aniked [119]

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8 m

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6 0
2 years ago
Element Q has an atomic number 68. Consider the isotope Q-136 how many protons are in a neutral atom of this isotope?
mote1985 [20]

Answer: 68

Explanation:

Isotopes of an element have same number of protons but different number of neutrons. Which means isotopes of an element have same atomic number but different mass number.

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Mass number is the sum of number of protons and the number of neutrons.

Given : atomic number of element Q = 68 = number of protons

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But as isotopes have same atomic number, the number of protons will be same and hence there are 68 protons are in a neutral atom of this isotope.

7 0
3 years ago
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