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3 years ago

Which element has the fewest valence electrons available for bonding?

Chemistry

2 answers:

Ostrovityanka [42]3 years ago

5 0

Answer:

Aluminum with three valence electrons.

Explanation:

This element belong in the IIIA group, thus having three valence electrons.

Valence electrons, are electrons of an element found in the outer most orbit, these are the electrons available for bonding.

vivado [14]3 years ago

4 0

Elements with a plus one charge have the fewest valence electrons among all groups and elements in the periodic table. This includes lithium, soldium, potassium, rubidium, cesium and francium. The number of valence electrons increase from left to right. The highest number of valence electrons include the noble gases.

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What is the average kinetic energy of 1 mole of a gas that is at 100 degrees Celsius?

Paha777 [63]

The average kinetic energy of an ideal gas is calculated as

KE_avg = 3/2 kT

where T is the temperature in Kelvin and k=R/N_A; R is the universal gas constant and N_A is the number of moles.

Thus, upon substitution we get

KE_avg = 3/2(8.314/1)(100+273)
KE_avg = 3/2(8.314)(373)
KE_avg = 4651.683

The average kinetic energy of 1 mole of a gas at 100 degree Celsius is 4651.683 J.

3 0

3 years ago

Need help with this problem plz!

jarptica [38.1K]

Answer:

Explanation:

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4 years ago

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What are the characteristics of a plasma

Lyrx [107]

A plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. The characteristics of plasmas are significantly different from those of ordinary neutral gases so that plasmas are considered a distinct "fourth state of matter

4 0

4 years ago

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How many atoms of each element are represented in Sn(CO3)2

Marina86 [1]

Sn=2
C and O=6
Im pretty confident yet I forgot a bit.

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3 years ago

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Ibuprofen is a drug used to manage mild pain, fever, and inflammation. It is a chiral drug, and only the S enantiomer, whose spe

madam [21]

Answer:

Specific Rotation = 105º

S% in mixture = 92%

Explanation:

Specific rotation in organic compounds varies linearly, then the enantiomeric excess can be express as:

$e.e. = \frac{\alpha }{\alpha pure}$

Where alpha is the specific rotation of the mixture and alpha pure is the specific rotation of the excess enantiomer.

Then, knowing that the S enantiomer is in excess you can calculate the specific rotation of that mixture:

$84=\frac{\alpha }{125.0}*100$

$\alpha =105 Degrees$

For calculating the percentage of S you should remember that the enantiometric excess is the percentage of excess of a certain enantiomer, for example in this case:

$84 = S-R$

Since S is in Excess

Also, it is true:

$100=S+R$

Then you can solve the system of linear equations, finding:

$8=R\\92=S$

Hope it helps!

4 0

3 years ago