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Leno4ka [110]
3 years ago
7

How many mL are in a cube that is 4 cm on every side?

Chemistry
1 answer:
andrew-mc [135]3 years ago
4 0

Answer:

64ml

Explanation:

Volume=4*4*4=64cm^3

64cm^3=64ml

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Certain atoms emit photons of light with an energy of 3.820 ✕ 10−19 J. Calculate the frequency (in Hz) and wavelength (in nm) of
charle [14.2K]

Answer:

ν = 5,765x10¹⁴ Hz

λ = 520 nm

230,0 kJ/mole

Explanation:

To convert energy yo frequency you need to use:

E = hν

Where E is energy (3,820x10⁻¹⁹ J)

h is Planck's constant (6,626x10⁻³⁴ Js)

And ν is frequency, replacing ν = 5,765x10¹⁴ s⁻¹ ≡ 5,765x10¹⁴ Hz

To convert frequency to wavelength:

c = λν

Where s is speed of light (2,998x10⁸ ms⁻¹)

ν is frequency (5,765x10¹⁴ s⁻¹)

And λ is wavelength, replacing: λ = 5,200x10⁻⁷ ≡ 520 nm

If 1 photon produce 3,820x10⁻¹⁹ J, in mole of photons produce:

3,820x10⁻¹⁹ J ×\frac{6,022x10^{23}}{1 mole} = 230040 J/mole ≡ 230,0 kJ/mole

I hope it helps!

4 0
3 years ago
Methane gas is collected over water at 25 C and an atmospheric pressure of 775 mmHg. What is the dry pressure of the gas at this
Pachacha [2.7K]

Answer:

25775 = 0.0313

6 0
2 years ago
3 6. 9 TIME REMAINING 57:16 A substance is made up of slow-moving particles that have very little space between them. Based on t
Natalka [10]

Answer:

It is not a gas because its particles do not have large spaces between them.

Explanation:

Solids and liquids have a lot of particles with few spaces between them. Also, gas particles move rapidly in each direction.

5 0
3 years ago
People who make goods and services are called _____ .
Yuri [45]
B producers. Think of it as if they’re producing the goods
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kondaur [170]

Answer:

its B

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