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yulyashka [42]
3 years ago
13

Are air masses and fronts the same thing?

Chemistry
1 answer:
Lorico [155]3 years ago
3 0
The correct awnser is yes, hope this helps
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Which of these is a chemical property of a substance?
denis-greek [22]
Flammability
Hope it helps!
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3 years ago
How many moles of H2SO4 are present in 0.500 L of a 0.150 M H2SO4 solution?
bonufazy [111]

Answer: 0.075

Explanation:

(concentration in molarity)(volume in liter) = answer

0.15 mol/L *0.500L = 0.075 mol

3 0
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The glow emitted by a substance exposed to eternal radiation is called
wolverine [178]
The glow emitted by a substance exposed to external radiation is called 'fluorescence'. In fluorescence, a fluorophore is exposed to external radiation, absorbs the energy and emits a form of light or glow. The answer to this question is 'fluorescence'. I hope this helps.
3 0
3 years ago
What is metal and non metal with differenties​
Monica [59]

Answer:

i have no clue

Explanation:

i have no clue

8 0
3 years ago
Read 2 more answers
What is the mean free path for the molecules in an ideal gas when the pressure is 100 kPa and the temperature is 300 K given tha
sladkih [1.3K]

Answer:

The mean free path = 2.16*10^-6 m

Explanation:

<u>Given:</u>

Pressure of gas P = 100 kPa

Temperature T = 300 K

collision cross section, σ = 2.0*10^-20 m2

Boltzmann constant, k = 1.38*10^-23 J/K

<u>To determine:</u>

The mean free path, λ

<u>Calculation:</u>

The mean free path is related to the collision cross section by the following equation:

\lambda =\frac{1}{n\sigma }------(1)

where n = number density

n = \frac{P}{kT}-----(2)

Substituting for P, k and T in equation (2) gives:

n = \frac{100,000 Pa}{1.38*10^{-23} J/K*300K} =2.42*10^{25}\  m^{3}

Next, substituting for n and σ in equation (1) gives:

\lambda =\frac{1}{2.42*10^{25}m^{-3}* .0*10^{-20}m^{2}}=2.1*10^{-6}m

6 0
3 years ago
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