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AnnyKZ [126]
3 years ago
13

Draw the Lewis structure (including all lone pair electrons and any formal charges) for one of the four possible isomers of C3H9

N.
The isomer I am using is propylamine, CH3 (CH2)2 NH2. How do you draw the lewis structure? Please include lone pairs and formal charges if needed.

Chemistry
1 answer:
Alexus [3.1K]3 years ago
6 0

Answer and Explanation

The isomer picked is the N-Propylamine.

It has a lone pair of electron available on the electron rich Nitrogen and no formal charge.

Since it will be hard to draw the Lewis structure in this answer format, I'll attach a picture of the Lewis structure to this answer.

The lone pair of electron is shown by the two dots on the Nitrogen atom.

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Which one of the following solutions will have the greatest concentration of hydroxide ions?
jek_recluse [69]

Answer:

e = 0.250 M calcium hydroxide

it will produce 0.5 M [OH⁻].

Explanation:

A = 0.100 M HCl

HCl is an acid it would produce negligible amount of OH⁻.

B = 0.100 M magnesium hydroxide

Mg(OH)₂ + H₂O → Mg²⁺ + 2OH⁻

The ration of Mg(OH)₂  and OH⁻ is 1:2.

[OH⁻] = 2× 0.100 = 0.200 M

C =0.100 M ammonia

NH₃ + H₂O → NH₄OH → NH₄⁺ + OH⁻

The Kb expression will be written as,

Kb = [NH₄⁺] [OH⁻] / [NH₃]

Kb = 1.8 ×10 ⁻⁵

Now we will put the values:

1.8 ×10 ⁻⁵ = [NH₄⁺] [OH⁻] / 0.100

[NH₄⁺] [OH⁻]  = x²

1.8 ×10 ⁻⁵ = x² / 0.100

x² = 1.8 ×10 ⁻⁵ × 0.100

x² =  1.8  × 10 ⁻⁶

x = 1.34 × 10 ⁻³

[OH⁻] = 1.34 × 10 ⁻³ M

d = 0.300 M rubidium hydroxide

RbOH + H₂O    →     Rb⁺ + OH⁻

The ratio of RbOH  and OH⁻ is 1:1.

[OH⁻] = 0.300 M

e = 0.250 M calcium hydroxide

Ca(OH)₂ + H₂O → Ca²⁺ + 2OH⁻

The ration of Ca(OH)₂  and OH⁻ is 1:2.

[OH⁻] = 2× 0.250 = 0.5 M

7 0
3 years ago
What are the chemical properties of beryllium phosphide??
o-na [289]

Answer:

Forms ionic bonds, insoluble, doesn't participate in single or double displacement reactions, non-reactive, high heat of combustion

Explanation:

Beryllium is a metal, since it belongs to group 2A, the alkaline earth metals. It has a total of 2 valence electrons.

Phosphorus, on the other hand, belongs to group 5A and has a total of 5 valence electrons.

We have a compound which has a metal in it, therefore, it's an ionic compound. Beryllium, our metal, loses its 2 electrons to gain an octet and phosphorus, our nonmetal, should gain 3 electrons to have an octet. The oxidation states are +2 and -3 respectively. This means we need 3 beryllium cations and 2 phosphide anions in our formula Be_3P_2.

Beryllium phosphide would be expected to be insoluble, as only beryllium chloride, fluoride, nitrate, phosphate and sulfate are soluble substances, while the remaining ones are expected to be insoluble.

Due to its insolubility, beryllium phosphide would not participate in any ionic reactions, such as single displacement or double displacement.

Since it's insoluble, we expect this compound to be chemically stable and not reactive. This implies that if we wanted to burn it, the heat of combustion would be very high, as a lot of energy would be needed to be supplied in an endothermic reaction in order to burn it.

8 0
3 years ago
Calcium and bromine have formed a bond. Leading up to this, calcium gave up electrons. It was a(n) ____.
Ugo [173]

<u><em>Answer:</em></u>

It was a positive ion.

<u><em>Explanation</em></u>

In CaBr, ionic bond is present. When one of the atom loses electrons and gets positive charges and other atom gains electrons and become negative. As a result of positive and nagative charges , a ionic bond formed.

As in this case, Ca loses electrons and become positive ion while on the other hand bromide gets the electrons and become negative ion.

<em>Note:</em>

Electropositive atoms always loose electrons Like Ca while electronegative atoms always gain elelctrons like Br.

5 0
4 years ago
Read 2 more answers
Can someone explain how you get the answers to these questions??<br> i really need help !!!
atroni [7]

The balanced chemical equations are as follows:

  • AlBr₃ + K → 3 KBr + Al
  • FeO + PdF₂ → FeF₂ + PdO
  • P₄ + 6 Br₂ → 4 PBr₃
  • 2 LiCl + Br₂ → 2 LiBr + Cl₂

<h3>What are balanced chemical equations?</h3>

Balanced chemical equations in which the moles of atoms of elements taking part in a reaction are balanced on both sides of the equation.

The balancing of chemical equations follows the law of conservation of mass which states that matter can neither be created nor destroyed.

In balancing of chemical equations, the following steps are follows:

  1. ensure that the all the substances involved are written in the equation
  2. do not alter the formula of compounds or molecules
  3. add numerical coefficients in front of the compounds and molecules to ensure that the moles of atoms of elements are balanced on both sides of the equation

In conclusion, a balanced chemical equation obeys the law of conservation of mass.

Learn more about balancing of chemical equations at: brainly.com/question/17056447

#SPJ1

5 0
2 years ago
What is the formal charge on the xenon atom (xe) in xef2?
Likurg_2 [28]
F  is a    group  17   element  which  are  referred  to  as halogens.  hence  requires  one  electrons   to  obtain  octet    electron  configuration.Therefore F  has  -1  charge.  Xe  is  a  group  18  element  which  are  referred  to  as    noble  gas  which  has  octet  electron  configuration but due  to  the two  F-   Xe   has  +2   formal  charges.
5 0
4 years ago
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