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3 years ago

How does the suns energy contribute to the movement of water in the water cycle?

Chemistry

1 answer:

Troyanec [42]3 years ago

5 0

Answer:Evaporation

Explanation:

The suns heat speeds the movement of water molecules, until the molecules move fast enough that they jolt out the surface of the water individually. Overtime the water gradually evaporates into water vapor.

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Which of these elements has the smallest atomic radius?

Nadusha1986 [10]

Answer:

F has the smallest

Explanation:

The trend is that atomic radius increases as you move down a group

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3 years ago

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Calculate the number of H atoms in 0.190 mole C 6 H 14 O .

fredd [130]

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3 years ago

Calculate the number of atoms in 1.004 mol bismuth

REY [17]

1 mole of any substance contains Avogadro's number of atoms.
Therefore, to know the number of atoms in 1.004 moles of Bismuth, all you have to do is multiply the given number of moles by Avogadro's number as follows:
number of atoms = 1.004 * 6.022 * 10^23 = 6.046088 * 10^23 atoms

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4 years ago

Suppose that you take the spectra of several stars to identify the 434-nm line of hydrogen (color = indigo), but you find the li

guapka [62]

Answer:if the wavelength increases, it is that of a star moving away from us. If the wavelength decreases, it is that of a star moving away from us.

Explanation: Doppler effect is caused by a motion towards or away from the observer(this motion is called a radial velocity). The greater the Doppler effect, the greater the motion towards or away from us. Sideways motion does nor cause Doppler effect.

The formula for calculation of Doppler effect= (wavelength emitted by the source) - (wavelength observed by the observer) / wavelength emitted by the source

Which also equals to; V/c

Where v= speed and c= speed of light.

The amount the pattern is shifted can enable us to determine the speed of the objects in our line of sight.

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3 years ago

How many grams of ethane gas (C2H6) are in 12.7-liter sample at 1.6 atmosphere and 24 degrees Celsius? Show all work used to sol

pentagon [3]

Data:
M (Molar Mass) of C2H6
C = 2*12 = 24 amu
H = 6*1 = 6 amu
---------------------
MM C2H6 = 24+6 = 30 g/mol

P (pressure) = 1.6 atm
V (volume) = 12.7 L
R = 0,082 atm .L/mol.K
n (Number of mols) → $n = \frac{m}{MM} m (mass) = ? T = 24ºC Celsius to Kelvin TK = TºC + 273 TK = 24 + 273 TK = 297 By the equation of state of the gases or equation of Clapeyron, we have:
 [tex]P*V = n*R*T$ 

Since $n = \frac{m}{MM}$ , we can perform the following substitution in the above Clapeyron equation:


$P * V = n * R * T$
$P*V = \frac{m}{MM} *R*T$
multiply cross
$m = \frac{P*V*MM}{R*T}$

Solving:
$m = \frac{P*V*MM}{R*T}$
$m = \frac{1.6*12.7*30}{0.082*297}$
$m = \frac{609.6}{24.354}$
$\boxed{\boxed{m \approx 25.03\:grams}}\end{array}}\qquad\quad\checkmark$

Answer:
25.03 grams of ethane gas

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3 years ago