The CORRECT ANSWER is A. "Loaf of Bread and Rock" Remember they might switch the answers so remember ^ is the right answer. Your welcome. : )
Answer:
156 mL will be the new volume of the shape
Explanation:
First of all, we need to convert the Torr to atm.
1220 Torr . 1 atm / 760 Torr = 1.60 atm
When the temperature remains constant, it is satisfied that the volume is modified indirectly proportionally.
Pressure is increased, then volume decreases
Pressure is decreased, then volume increases
P₁ . V₁ = P₂ . V₂
0.768 atm . 325mL = 1.60 atm . V₂
V₂ = 0.768 atm . 325mL / 1.60 atm → 156 mL
Group 18 is the only group in periodic table in which all the elements are nonmetals. This group contains F, Cl, Br, I and At and also the other name of this group is halogen which means salt producer.
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The decreasing order of wavelengths of the photons emitted or absorbed by the H atom is : b → c → a → d
Rydberg's formula :
,
where λ is the wavelength of the photon emitted or absorbed from an H atom electron transition from
to
and
= 109677 is the Rydberg Constant. Here
and
represents the transitions.
(a)
=2 to
= infinity
= 109677/4 [since 1/infinity = 0] Therefore,
= 4 / 109677 = 0.00003647 m
(b)
=4 to
= 20
= 6580.62
Therefore,
= 1 / 6580.62 = 0.000152 m
(c)
=3 to
= 10
= 11089.56
Therefore,
= 1 / 11089.56 = 0.00009 m
(d)
=2 to
= 1
= - 82257.75
Therefore,
= 1 /82257.75 = - 0.0000121 m
[Even though there is a negative sign, the magnitude is only considered because the sign denotes that energy is emitted.]
So the decreasing order of wavelength of the photon absorbed or emitted is b → c → a → d.
Learn more about the Rydberg's formula athttps://brainly.com/question/14649374
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Most covalent compounds have relatively low melting points and boiling points. Covalent compounds usually have lower enthalpies of fusion and vaporization than ionic compounds. Covalent compounds tend to be more flammable than ionic compounds. When dissolved in water, they don't conduct electricity.
Source: https://socratic.org/questions/what-are-the-main-properties-of-covalent-compounds