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3 years ago

Can someone help me with this

Chemistry

1 answer:

Flura [38]3 years ago

6 0

Answer:

I don't know how to get the answer sorry

Explanation:

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Based on bond type, which compound has the

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Based on bond type, CaCI2 has the highest melting point.

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Answer: I believe it is artificial selection (not certain though)

Explanation: modern day dogs have been bread an domesticated to be used by humans in ways we see fit.

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Which milligram quantity contains a total of four significant figures

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3 years ago

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The mathematical relationship between gas solubility and pressure is called Henry's Law, solubility = kHPgas where kH is the Hen

Diano4ka-milaya [45]

Answer : The unit of $k_H$ in mol/L.mm Hg is, $1.8\times 10^{-6}mol/L.mmHg$

Explanation :

As we know that the $k_H$ is the Henry's Law constant for argon at $25^oC$ is, $1.4\times 10^{-3}mol/L.atm$

Now we have to determine the unit of $k_H$ in mol/L.mm Hg

Conversion used for pressure from atm to mmHg is:

1 atm = 760 mmHg

So,

$k_H=1.4\times 10^{-3}mol/L.atm\times \frac{1atm}{760mmHg}$

$k_H=1.8\times 10^{-6}mol/L.mmHg$

Thus, the unit of $k_H$ in mol/L.mm Hg is, $1.8\times 10^{-6}mol/L.mmHg$

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3 years ago

Determine the number of shared and unshared electrons in the structure. shared (bonding) electrons: unshared (lone, nonbonding)

telo118 [61]

This is an incomplete question, here is a complete question.

The given molecule is, $SO_3$ and structure is shown below.

Determine the number of shared and unshared electrons in the structure.

Shared (bonding) electrons :

Unshared (lone, non-bonding) electrons :

Answer :

Shared (bonding) electrons : 8

Unshared (lone, non-bonding) electrons : 16

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $SO_3$

As we know that sulfur and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in $SO_3$ = 6 + 3(6) = 24

Bonding electrons : These are those electrons that are shared between the atoms resulting in the formation of bond.

Non-bonding electrons : They are the valence electrons of the atom which are not shared with another atom.

According to Lewis-dot structure, there are 8 number of bonding electrons and 16 number of non-bonding electrons.

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3 years ago