1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren [92.7K]
3 years ago
14

According to the VSEPR model, the progressive decrease in the bond angles in the series of molecules CH4, NH3, and H2O is best a

ccounted for by the:_________
Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
6 0

Answer:

Presence of lone pairs of electrons

Explanation:

According to VSEPR theory, the presence of lone pairs caused increased repulsion of electron pairs on the valence shell of the centeral atom of the molecule. This decreases or distorts the bond angle. The decrease in bond ange depends on the number of lone pairs present on the valence shell of the central atom of the molecule. Ammonia has only one lone pair hence the bond angle is 107°, water has two lone pairs and the bond angle is 104°. Compare this this with the bond angle of 109° in methane which has only bond pairs and no lone pairs.

You might be interested in
What intermolecular force attracts two non polar molecules to each other
Salsk061 [2.6K]

The intermolecular force that attracts two nonpolar molecules is London dispersion forces, which are also called induced dipole-induced

3 0
3 years ago
Why isn't there a lunar eclipse every time Earth is in between the sun and<br> the Moon?
DerKrebs [107]
Because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.
8 0
3 years ago
Which chemical has the least solubility at 80 c
Vinil7 [7]

Answer:

But since the solubility product constant for each compound is provided, their relative solubility can be ranked from highest to lowest. Depending on the ranking above, it is evident that aluminum hydroxide Al(OH)3 A l ( O H ) 3 has the lowest solubility at 25 Celsius degreesAs temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

6 0
2 years ago
The number of particles in 1 mole of hydrogen gas is ________.
ivanzaharov [21]
Hidrogen gas is a diatomic gas, this is H2, which means that one molecule of gas has two atoms (every molecule of hydrogen gas consists in H2).

The particles in gases are the molecules, not atoms.

So, every molecule is a particle, and when you are told that you have 1 mole of hygrogen gas means that you have 1 mole of H2 molecules which is the same that 1 mole of particles.

Therefore, the answer is one mole.
3 0
3 years ago
Helium is the___
s344n2d4d5 [400]

Answer:

the answer is B-2nd; stars

Explanation:

7 0
3 years ago
Other questions:
  • How many total atoms are in 0.720 g of p2o5
    13·2 answers
  • Minerals are very useful to us. Which of the following is a false statement? Question options: Pyrite is an ore of gold and is u
    15·1 answer
  • Which of the following gases is NOT found in Earth’s atmosphere?
    5·2 answers
  • What will happen to the gas pressure as the temperature increases, if the amount and volume of the gas are kept constant?
    7·1 answer
  • Place an X next to each action that would most likely increase the reaction rate.
    14·1 answer
  • What carries electric current from the cell to the other components of a circuit.​
    6·1 answer
  • Which of the following elements is in the same group as Sulfur (S)?
    10·1 answer
  • How would someone describe a passing grade
    14·1 answer
  • hl0 guys i'm vishakha i'm new on us brainly bt i'm on the gnius rank on indian brainly vsinha1072 is my sna p acc add me ill add
    6·2 answers
  • When a substance changes from a solid to a liquid, is a new substance made?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!