Imprints of the shells of ocean clams are often found in the rocks of the Appalachian Mountains. What do these imprint fossils M
1 answer:
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Answer:
Each oxygen atom is connected to the central O atom with 2 covalent bonds.
Explanation:
Oxygen atoms are connected by two covalent bonds in the oxygen molecule from the Lewis structure, we see that the bond order for O2 is 2 (a double bond) this is clearly seen in the image attached. There are no resonance structures for the oxygen molecule since there are no partial bonds in the molecule, only the two covalent bonds present.
This structure of oxygen shown in the image is its only structure, showing the covalent bonds formed and other non bonding electrons present in the molecule. The octet rule is followed in drawing the structure. Each oxygen atom possesses an octet of electrons on its outermost shell.
1) 2P
2) Average speed does not change
Explanation:
1)
To solve the first part of the problem, we can use Boyle's Law, which states that:
"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"
Mathematically:
where
p is the pressure of the gas
V is its volume
For the Xe gas in this problem we can write
where:
is the initial pressure
is the initial volume
is the final volume
Solving for p2, we find the final pressure:
So, the pressure has doubled.
2)
The average speed of the atoms/molecules in the gas is given by the formula
where
R is the gas constant
T is the absolute temperature (in Kelvin) of the gas
M is the molar mass of the gas
is known as rms speed of the particles in the gas
From the formula, we see that the speed of the atoms in the gas depends only on the temperature of the gas.
In the Xe(g) gas in this problem, the temperature is kept constant; therefore, since nothing changes in the formula, this means that the average speed also does not change.