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irga5000 [103]
3 years ago
11

1. In_____particles are in contact with each other.

Chemistry
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

condensed matter should be your answer

Explanation:

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Which of the following molecules would exhibit only London forces?a)CH4, BH3, and CCl4b)H2O, NH3, and CCl4c)PH3, NH3, and CCl4
Alex787 [66]

Answer:

a)CH₄, BH₃, and CCl₄

Explanation:

<u>London dispersion forces:- </u>

The bond for example, in the molecule is F-F, which is non-polar in nature because the two fluorine atoms have same electronegativity values.

The intermolecular force acting in the molecule are induced dipole-dipole forces or London Dispersion forces / van der Waals forces which are the weakest intermolecular force.

Out of the given options, H₂O , NH₃ exhibits hydrogen bonding which is:-

<u>Hydrogen bonding:- </u>

Hydrogen bonding is a special type of the dipole-dipole interaction and it occurs between hydrogen atom that is bonded to highly electronegative atom which is either fluorine, oxygen or nitrogen atom.

Thus option B and C rules out.

<u>Hence, the correct option which represents the molecules which would exhibit only London forces is:- a)CH₄, BH₃, and CCl₄</u>

4 0
3 years ago
Use Lewis theory to determine the chemical formula for the compound formed between Sr and N.
mariarad [96]

Answer:

Sr_3N_2

Explanation:

Hello,

In this case, since the Lewis theory is based on the bonds formation between atoms via the valence electrons, we can verify the chemical formula of the compound formed by strontium and nitrogen by noticing that strontium has two valence electrons as it is in group IIA, for that reason, two nitrogens should be available for bonding. Therefore, since nitrogen is in group VA, it is said that three electrons are required to attain the octet (maximum amount bonded electrons), for that reason, three strontiums are should be available for bonding. In such a way, the formula should be:

Sr_3N_2

Regards.

8 0
3 years ago
If a mole of sodium chloride weighs approximately 58 grams, and you have 29 grams of sodium chloride, how many moles of sodium c
Dennis_Churaev [7]
Molar mass NaCl = 58 g

Mass of solute = 29 g

number of moles:  mass of solute / molar mass

n = 29 / 58

n = 0.5 moles

hope this helps!
4 0
3 years ago
14. How do you describe an atom in which the number of protons is equal
masha68 [24]
The number of protons in the nucleus of the atom is equal to the atomic number (z) and the number of electrons in a neutral atom is equal to the number of protons
8 0
3 years ago
When was George Washington born
ASHA 777 [7]

he was born on feb. 22, 1723

8 0
3 years ago
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