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vodka [1.7K]
3 years ago
14

What is Avogadro's number?

Chemistry
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer:

C.  the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance

Explanation: Its correct

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What is a sign that a chemical change has occurred?
blondinia [14]

Answer:

The production of heat, light, or smoke is observed.

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How many eight-packs of water would you need if 32 people
bonufazy [111]

Answer:

You would need 8 eight packs of water

Explanation:

32  x  2 (seeing as this is the amount of water each person consumes)

= 64 divided by 8 (the amount of water in each pack)

= 8 eight packs of water

5 0
3 years ago
8. Fill in the blanks underneath the wave spectrum to indicate the relative positions of each type of
anzhelika [568]
Ultraviolet as ultraviolet light waves are around 420 nm like stated in the photo
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3 years ago
Mercury’s atomic emission spectrum is shown below. Estimate the wavelength of the orange line. What is its frequency? What is th
lions [1.4K]

The wavelength of the orange line is 610 nm, the frequency of this emission is 4.92 x 10¹⁴ Hz and the energy of the emitted photon corresponding to this <em>orange line</em> is 3.26 x 10⁻¹⁹ J.

<em>"Your question is not complete, it seems to be missing the diagram of the emission spectrum"</em>

the diagram of the emission spectrum has been added.

<em>From the given</em><em> chart;</em>

The wavelength of the atomic emission corresponding to the orange line is 610 nm = 610 x 10⁻⁹ m

The frequency of this emission is calculated as follows;

c = fλ

where;

  • <em>c is the speed of light = 3 x 10⁸ m/s</em>
  • <em>f is the frequency of the wave</em>
  • <em>λ is the wavelength</em>

f = \frac{c}{\lambda } \\\\f = \frac{3\times 10^8}{610 \times 10^{-9}} \\\\f = 4.92 \times 10^{14} \ Hz

The energy of the emitted photon corresponding to the orange line is calculated as follows;

E = hf

where;

  • <em>h is Planck's constant = 6.626 x 10⁻³⁴ Js</em>

<em />

E = (6.626 x 10⁻³⁴) x (4.92 x 10¹⁴)

E = 3.26 x 10⁻¹⁹ J.

Thus, the wavelength of the orange line is 610 nm, the frequency of this emission is 4.92 x 10¹⁴ Hz and the energy of the emitted photon corresponding to this <em>orange line</em> is 3.26 x 10⁻¹⁹ J.

Learn more here:brainly.com/question/15962928

6 0
2 years ago
The following models represent three different mixtures of the same solid in water,
velikii [3]

Answer:

A

Explanation:

bcuz the water in it is little

3 0
3 years ago
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