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4 years ago

Why is the sky orange and red at sunset

Chemistry

2 answers:

8090 [49]4 years ago

7 0

Answer:

Here ya go ;)

Small particles of dust and pollution in the air can contribute to (and sometimes even enhance) these colors, but the primary cause of a blue sky and orange/red sunsets or sunrises is scattering by the gas molecules that make up our atmosphere. ... In this way, clouds act as a screen on which nature's colors are painted.

Furkat [3]4 years ago

5 0

At sunset the light from the sun grazes across the surface of the earth, passing through a long column or pathlength of atmosphere. During its passage through the atmosphere the blue components of the light are reduced in intensity, making the transmitted beam of sunlight more yellow or even red in color.

hope this helps ^^

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What type of intermolecular forces are expected between 3-bromopyridine molecules?

ahrayia [7]

Type of intermolecular forces are expected between 3-bromopyridine molecules dipole induced dipole force.

Intermolecular pressure is the pressure among molecules it includes the forces of appeal and repulsion. however the intermolecular forces are weaker than intramolecular pressure, has London dispersion pressure.

Dipole precipitated Dipole Forces A dipole-brought on dipole enchantment is a weak enchantment that results while a polar molecule induces a dipole in an atom or in a non polar molecule by traumatic the arrangement of electrons inside the non polar species.

It is a dipole as the hydrogens have a partial superb fee and the oxygen has a partial negative charge. An precipitated dipole is the end result of molecules interacting and causing one of the molecules electrons to have this distorted rate.

Learn more about induced dipole here:- brainly.com/question/22973877

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7 0

2 years ago

The density of copper is 8.9 g/cm3.If you have 90.0 grams of copper ,how much volume is your copper occupying

lesya692 [45]

D= m/v
90.0/8.9
V= 10.11235
V= 10 cm3

5 0

3 years ago

For the reaction magnesium plus hyrdogen chloride yeilds hydrogen and magnesium chloride, calculate the percent yield of magnesi

Lina20 [59]

Answer:

Percentage yield of MgCl₂ = 83.4%

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

Mg + 2HCl —> MgCl₂ + H₂

Next we shall determine the mass of of Mg that reacted and the mass of MgCl₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of Mg = 24 g/mol

Mass of Mg from the balanced equation = 1 × 24 = 24 g

Molar mass of MgCl₂ = 24 + (35.5×2)

= 24 + 71

= 95 g/mol

Mass of MgCl₂ from the balanced equation = 1 × 95 = 95 g

SUMMARY:

From the balanced equation above,

24 g of Mg reacted to produce 95 g of MgCl₂.

Next, we shall determine the theoretical yield of MgCl₂. This can be obtained as follow:

From the balanced equation above,

24 g of Mg reacted to produce 95 g of MgCl₂.

Therefore, 100 g of Mg will react to produce = (100 × 95)/24 = 395.83 g of MgCl₂.

Thus, the theoretical yield of MgCl₂ is 395.83 g

Finally, we shall determine the percentage yield of MgCl₂. This can be obtained as follow:

Actual yield of MgCl₂ = 330 g

Theoretical yield of MgCl₂ = 395.83 g

Percentage yield of MgCl₂ =?

Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 330 / 395.83 × 100

Percentage yield of MgCl₂ = 83.4%

3 0

3 years ago

What volume in litres will 38gr of F2 occupy at 0.999 bar and 273 K

Oliga [24]

Answer:

$V=22.68L$

Explanation:

Hello,

In this case, we use the ideal gas equation to compute the volume as shown below:

$PV=nRT\\\\V=\frac{nRT}{P}$

Nonetheless we are given mass, for that reason we must compute the moles of gaseous fluorine (molar mass: 38 g/mol) as shown below:

$n=38 g *\frac{x}{y} \frac{1mol}{38 g} =1mol$

Thus, we compute the volume with the proper ideal gas constant, R:

$V=\frac{1mol*0.083\frac{bar*L}{mol*K}*273K}{0.999bar} \\\\V=22.68L$

Best regards.

6 0

3 years ago

What is the meaning of semipermeability?

ollegr [7]

Answer:

semipermeability

Explanation:

partially but not freely or wholly permeable specifically : permeable to some usually small molecules but not to other usually larger particles a semipermeable membrane.

8 0

3 years ago