Chemistry, 21.06.2019 23:00 dice50

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Answers: 1

Show answers

Answers

Answer from: Tianylee2328

Answer : The correct option is, (B) bonding and unshared pairs around central atom.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule.

When we are determining the shape of a molecule then it is important to draw a Lewis-dot structure and for drawing a Lewis-dot structure we should know that how many total number of valance electrons present in a given compound or a molecule.

For example:

The given molecule is, H_2CO_3

As we know that hydrogen has '1' valence electrons, carbon has '4' valance electrons and oxygen has '6' valence electron.

Therefore, the total number of valence electrons in H_2CO_3 = 2 + 4 + 18 = 24

Now we have to determine the hybridization of carbon in H_2CO_3

Number of bond pairs = 3

Number of lone pairs = 0

Number of atomic orbitals around carbon atom = 3 + 0 = 3

So, hybridization will be sp^2 and the shape is, trigonal planar.

Hence, it is important to draw a Lewis Dot structure first in order to see the total number of bonding and unshared pairs around central atom.

Answer from: Quest

the correct answer is answer a. a mixture

no other options make sense

hope this

have a great day : )

- sprinkles

Answer from: Quest

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. $hbr$ completely dissociates to $h^+$ and $br-$ ions. a is incorrect because $h_2s$ does not fully ionize to $h^+$ and $hs^-$ ions and some remain as the compound $h_2s$ . c and d are incorrect because, $li_2o$ and $libr$ do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise, if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both $li_2o$ and $libr$ have a complete octet so can not accept any electrons which disqualifies them as acids.

Another question on Chemistry

Chemistry, 21.06.2019 23:50

How will the emission of an alpha particle affect the atomic number of an atom

Answers: 3

Answer

Chemistry, 22.06.2019 23:00

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?

Answers: 1

Answer

Chemistry, 23.06.2019 13:30

1. what is boyle’s law? • state the definition of the law in words. • what are the assumptions of boyle’s law? • write at least one mathematical equation that represents the law. • what can be calculated with boyle’s law? • using a gas-filled balloon as an example, describe what is happening to the gas molecules inside the balloon before and after you squeeze it.

Answers: 2

Answer

Chemistry, 23.06.2019 14:00

If the molar mass of the compound is 96.69 g/mol, what is the molecular formula of the compound?

Answers: 1

Answer

You know the right answer?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in ord...

Questions