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gladu [14]
3 years ago
15

As altitude increases, what is the trend in density of the air in the atmoshere

Chemistry
1 answer:
Finger [1]3 years ago
5 0
The density will become less, this is because thing with less density float to the top when things with more density float to the bottom. It also becomes colder.
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Why does Beryllium have a larger first Ionization energy than boron?
Nata [24]
This is an exception to the general electronegativity trend. It can be explained by looking at the electron configurations of both elements.

<span>Be:[He]2<span>s2
</span></span><span>B:[He]2<span>s2</span>2<span>p1

</span></span>

When you remove an electron from beryllium, you are taking away an electron from the 2s orbital. When you remove an electron from boron, you are taking an electron from the 2p orbital. The 2p electrons have more energy than the 2s, so it is easier to remove them as they can more strongly resist the effective nuclear charge of the nucleus.

7 0
3 years ago
From the chair conformation, rotate about the carbon-carbon bonds of the ring to form a boat conformation. In the boat conformat
pychu [463]
Is there a graph? I need to see one
5 0
3 years ago
Using the same sample of gas (P1 = 565 torr , T1 = 27 ∘C ), we wish to change the pressure to 5650 torr with no accompanying cha
Stels [109]

Answer:

2726.85 °C

Explanation:

Given data:

Initial pressure = 565 torr

Initial temperature = 27°C

Final temperature = ?

Final pressure = 5650 torr

Solution:

Initial temperature = 27°C (27+273 = 300 K)

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

T₂  = P₂T₁ /P₁

T₂  = 5650 torr × 300 K / 565 torr

T₂  = 1695000 torr. K /565 torr

T₂ = 3000 K

Kelvin to degree Celsius:

3000 K - 273.15 = 2726.85 °C

4 0
2 years ago
State whether the following statements are true or false (with justification). (a) 1 mol of N2 has more molecules than 1 mol of
MAVERICK [17]

Answer:

A. False.

Every substance contains the same number of molecules i.e 6.02x10^23 molecules

B. False.

Mass conc. = number mole x molar Mass

Mass conc. of 1mole of N2 = 1 x 28 = 28g

Mass conc. of 1mol of Ar = 1 x 40 = 40g

The mass of 1mole of Ar is greater than the mass of 1mole of N2

C. False.

Molar Mass of N2 = 2x14 = 28g/mol

Molar Mass of Ar = 40g/mol

The molar mass of Ar is greater than that of N2.

Explanation:

7 0
2 years ago
When liquid water changes into solid ice, it increases in ?
kramer

when liquid water changes into solid ice, it increases in mass

8 0
2 years ago
Read 2 more answers
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