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leonid [27]
2 years ago
8

O2 oxygen is diatomicO + O O=O Double Bond

Chemistry
1 answer:
krek1111 [17]2 years ago
7 0

Answer:

O 100

Explanation:

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it takes 513 kj to remove a mole of electrons from the atoms at the surface of a piece of metal. how much energy does it take to
schepotkina [342]

Answer:

The right solution is "8.5\times 10^{-19} \ joule".

Explanation:

As we know,

1 mole electron = 6.023\times 10^{23} \ no. \ of \ electrons

Total energy = 513 \ KJ

                     = 513\times 1000 \ joule

For single electron,

The amount of energy will be:

= \frac{513\times 1000}{(6.023\times 10^{23})}

= 8.5\times 10^{-19} \ joule

8 0
3 years ago
What is the freezing point depression of a solution that contains 0.705?
Sveta_85 [38]
Colligative properties calculations are used for this type of problem. Calculations are as follows:<span>
</span>

<span>ΔT(freezing point)  = (Kf)m
ΔT(freezing point)  = 1.86 °C kg / mol (0.705)
ΔT(freezing point)  = 1.3113 °C

</span>

<span>
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<span>Hope this answers the question. Have a nice day.</span>

6 0
3 years ago
Why are xrays used to probe the crystal structure of a material
ioda

Answer:

Because X-rays have wavelengths similar to the size of atoms

8 0
2 years ago
A balloon moving along a straight path experiences a force of
Angelina_Jolie [31]
The net force is 11.1 because 23.5-12.4 is your net force

hope this helps:)
6 0
2 years ago
Find the actual yield when the theatrical yield is 1.09g and percent yield is 90%.​
ioda
Actual yield/Theoretical yield *100= Percentage yield. So Actual yield = Percentage yield*Theoretical yield.
Therefore actual yield= 90/100 * 1.09g = 0.98g

Actual yield: 0.98 g
3 0
2 years ago
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