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
klio [65]
3 years ago
7

Kevin draws a lewis structure for the molecule of ozone, o3. later on that day, he draws another one for a friend to show what h

e's learned in school. when he compares the two drawings, he notices they look different. he runs to the teacher the next day to ask her which one is right. smiling, she answers, "they're both correct." explain why this is.

Chemistry
2 answers:
Travka [436]3 years ago
8 0

Explanation:

A structure that represents bonding between the atoms of the molecule and the lone pair of electrons existing in the structure or molecule is known as a lewis structure.

Therefore, when Kevin's teacher said that both the structures drawn by him are correct then it means that Kevin has drawn the lewis structure of the compound which showed different arrangement of electrons and lone pairs but they are actually the same.

Paha777 [63]3 years ago
4 0
<span>The most important part of a lewis structure is that it's number of valence electrons matches the number needed for the atom(s). Because lewis structures are drawn with many "slots" for valence electrons, they can be assigned in a loose order as long as they do not inherently change the shape or number of electrons for the atom. Therefore different lewis structures can be formed, just keep the variables the same.</span>
You might be interested in
Which of the following is NOT a characteristic of a strong acid?
juin [17]

Answer:

a and c

Explanation:

4 0
3 years ago
You may have to recrystallize any or all of the components of your extraction mixture, benzoic acid, ethyl-4-aminobenzoate and f
hjlf

Answer:

the Recrystallization solvents are;

-Sodium Hydroxide Base (NaOH)

- Hydrochloric Acid (HCl)

- Sand bath when acidic and basic components are removed.

Explanation:

Recrystallization is simply a technique used to purify an impure compound in a solvent.

Now, we want to purify the mixture of benzoic acid, Ethyl-4-aminobenzoate and fluorenone.

For the benzoic acid, it can be separated out of the mixture by addition of sodium hydroxide base (NaOH).

The Ethyl - 4 - aminobenzoate will be separated from the mixture by the addition of Hydrochloric Acid (HCl).

The fluorenone would be separated out by heating the mixture in a sand bath after the basic and acidic components have already been extracted out.

Thus, the Recrystallization solvents are;

-Sodium Hydroxide Base (NaOH)

- Hydrochloric Acid (HCl)

- Sand bath when acidic and basic components are removed.

6 0
3 years ago
When energy is added to solid manganese(ii) sulfate heptahydrate crystals they break down to form liquid water and solid mangane
RoseWind [281]
Chemical reaction: MnSO₄·7H₂O → MnSO₄·H₂O + 6H₂O.
MnSO₄·7H₂O is <span>manganese(II) sulfate heptahydrate.
</span>MnSO₄·H₂O is <span>manganese(II) sulfate monohydrate.
Manganese has oxidation number +2 and sulfate anion has oxidation number -2. For </span><span>crystallization water h</span>epta means seven and mono means one.
7 0
4 years ago
3) Lithium metal (Li) react with hydrosulfuric acid (HS) to produce hydrogen gas and magnesium chloride (Li 2 S) . How many gram
Vaselesa [24]

Answer:

3.066g

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

2Li + H2S —> Li2S + H2

Step 2:

Data obtained from the question.

Volume (V) of H2 = 4.5L

Temperature (T) = 315K

Pressure (P) = 1.258 atm

Note:

Gas constant (R) = 0.0821atm.L/Kmol

Number of mole (n) of H2 =..?

Step 3:

Determination of the number of mole of H2 produced.

This can be obtained by using the ideal gas equation as follow

PV = nRT

Divide both side by RT

n = PV /RT

n = 1.258 x 4.5 / 0.0821 x 315

n = 0.219 mole

Therefore, 0.219 mole of H2 is produced.

Step 4:

Determination of the number of mole of Li that will produce 0.219 mole of H2.

This is shown below:

2Li + H2S —> Li2S + H2

From the balanced equation above,

2 moles of Li reacted to produce 1 mole of H2.

Therefore, Xmol of Li will react to produce 0.219 mole of H2 i.e

Xmol of Li = 2 x 0.219

Xmol of Li = 0.438 mole

Step 5:

Conversion of 0.438 mole of Li to grams.

Number of mole of Li = 0.438 mole

Molar Mass of Li = 7g/mol

Mass = number of mole x molar Mass

Mass of Li = 0.438 x 7

Mass of Li = 3.066g

Therefore, 3.066g if Li is needed for the reaction.

6 0
3 years ago
Which of the compounds of H3PO4, Mg(OH)2, LiOH, and HCl, behave as acids when they are dissolved in water?A. Mg(OH)2 and LiOH.B.
vesna_86 [32]

Answer:

B. H3PO

Explanation:

6 0
3 years ago
Other questions:
  • Which nuclear symbol correctly completes the following nuclear reaction?
    11·1 answer
  • What must take place for copper metal to be oxidized?
    7·1 answer
  • A sample of marble has a volume of 8 cm3 and a density of 2.75 g/cm3. What is its mass?
    9·2 answers
  • Water has a higher boiling point than expected because
    15·2 answers
  • ΔH for the formation of CuCl2 from its elements is -220.1 kJ/mol. How many kJ are associated with the formation of 0.30 mole of
    13·2 answers
  • Help not to sure what its asking I thought it was 2 but there ain't a 2 ​
    10·2 answers
  • The velocity of an object must include both speed and direction?
    11·1 answer
  • What conclusion can be made about the solubility of nickel (II)
    11·1 answer
  • What is the mass of a 2.5 mole sample of MgO2
    10·1 answer
  • What is the molarity of a solution in which 25g NaCl in a 2.00 L solution?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!