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yanalaym [24]
2 years ago
15

7. predict how atoms such as c, h, o, and n share electrons in a covalent bond, the role of electronegativity, and the potential

for hydrogen bonding between molecules.
Chemistry
1 answer:
Lena [83]2 years ago
8 0

The atoms C,H,O and N becomes more electronegative as the periodic table's right side and top get increasingly electronegative as you move down it. A hydrogen bond needs to share elements with hydrogen in order to exist.

As you move up and to the right of the periodic table, the electronegative properties increase. To form a hydrogen bond, elements would have to be shared with hydrogen. Each element becomes increasingly electronegative as you move further right on the periodic table, with the exception of noble gases (which aren't particularly reactive).

In order to obtain stability, atoms C, H, O, and N would therefore most likely desire to share their electrons (i.e., they are more electronegative because they wish to "hog" electrons). Due to its intermediate electronegativity, hydrogen has a mid-range potential for forming bonds with other molecules.

Learn more about hydrogen element here:

brainly.com/question/16979348

#SPJ4

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What is the volume of 902.0 g of C₂H₄ gas at STP
k0ka [10]

Answer:

Volume  = 722.1 L

Explanation:

Given data:

Mass of gas = 902.0 g

Temperature = standard = 273.15 K

Pressure = standard = 1 atm

Volume of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will calculate the number of moles of C₂H₄.

Number of moles = mass/molar mass

Number of moles = 902.0 g/ 28.05 g/mol

Number of moles = 32.2 mol

Volume of gas:

PV = nRT

1 atm ×V = 32.2 mol × 0.0821   atm.L/ mol.K  × 273.15 K

V = 722.1 atm.L/1 atm

V = 722.1 L

7 0
3 years ago
PLEASE HELP!
charle [14.2K]

Answer: D the average mass of all the isotopes

Explanation:

3 0
3 years ago
When an alpha particle is released by an atom, the atom
alexandr402 [8]
When an alpha particle is released by an atom, the atom loses a helium nucleus.
8 0
4 years ago
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What is the identity of the element with the electron configuration of
Nataly [62]

Zinc

Explanation:

  Electron configuration:

          1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s²

To decipher this atom, we must understand what each of the letters and number represents;

                 1s²

  1 is the principal quantum number

  s is the azimuthal number or the subshell

  2 superscript is the number of electrons

Using the number of electrons, we can deduced the atom:

                              2+2+6+2+6+10+2 = 30 electrons

The element with 30 electrons on the periodic table is Zinc

Learn more:

Periodic table brainly.com/question/1704778

#learnwithBrainly

3 0
3 years ago
Will a precipitate form when 20.0 ml of 0.10 M Ba(NOxaq) and 50.0 mL of 0.10 M NaCO(aq) are mixed together?
Tom [10]

Answer:

B. Q > K precipitate will form

Explanation:

The reaction is;

Ba(NO3)2(aq) + Na2CO3(aq) ------> BaCO3(s) + 2NaNO3(aq)

Hence the reaction could form a precipitate of BaCO3.

Number of moles of carbonate ions = 50/1000 * 0.10 M =  5 * 10^-3 moles

Number of moles of Barium ions = 20/1000 * 0.10 M = 2 * 10^-3 moles

Total volume after reaction = 20ml + 50ml = 70 ml or 0.07 L

Molarity Barium ions = 5 * 10^-3 moles/ 0.07 L = 0.07 M

Molarity carbonate ions = 2 * 10^-3 moles/ 0.07 L =0.03 M

Q = [Ba^2+] [CO3^2-] = 0.07 * 0.03 = 2.1 * 10^-3

But K = 2.58  ×  10 ^− 9

We can clearly see that Q>K therefore precipitate will form

5 0
3 years ago
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