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Step2247 [10]
2 years ago
7

PLEASE HELP!! this is on USAtestprep a) b) c) d)

Chemistry
1 answer:
kaheart [24]2 years ago
3 0
The answer is D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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The increase in the rate of solvation with a rise in solvent temperature is mainly due to a(n)
katrin2010 [14]
The answer would be b
3 0
2 years ago
What’s this answer help me out
Paladinen [302]
Sorry my guy no idea try googling
3 0
3 years ago
If an electromagnetic wave has a frequency of 4.5 x 10^18 Hz, what is its wavelength? The speed of light is 3 x 108 m/s.
Mekhanik [1.2K]

Answer:

Wavelength, λ  = 6.7 x 10^-11 m

Explanation:

Frequency and wavelength are inversely proportional to each other.

In this problem;

f =  4.5 x 10^18 Hz

wavelength, λ = ?

Speed of light, c = 3 x 108 m/s.

These variables are related by the following equation;

c = λ * f

Making λ subject of focus, we have;

λ = c / f

λ = 3 x 10^8 / 4.5 x 10^18

λ  = 0.67 x 10^-10

λ  = 6.7 x 10^-11 m

3 0
3 years ago
During a solvent extraction, a student lost track of which layer was the aqueous layer and which layer was the organic layer. Wh
KatRina [158]

Answer:

a. add a little distilled water to see which layer the water adds to

Explanation:

The problem tells us to keep in mind two major aspects of the test: It has to be <em>simple</em>, as well as <em>non-destructive</em>:

  • Adding distilled water can be made in under a minute, without requiring specialized laboratory equipment, unlike IR.
  • It is also non-destructive, because the contents on either layer won't change due to the added distilled water.
4 0
3 years ago
Read 2 more answers
How can iodine ( Z = 53) have a higher atomic number yet a lower atomic mass than telluriurn ( Z = 52)?
Leokris [45]

Answer:

Iodine have higher atomic size than tellurium because of the presence of more number of protons and lower atomic mass than tellurium because of the presence of lower number of neutrons.

Explanation:

Atomic number of an element is the number of the protons present in the element.

Atomic mass is the sum of a protons and the neutrons which are present in the nucleus of the atom.

Iodine has higher atomic number than tellurium because it has more number of protons than the tellurium.

On the other hand, iodine has lower atomic mass than tellurium because it has less number of neutrons in its core.

7 0
2 years ago
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