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
Step2247 [10]
3 years ago
11

To draw a complete lewis structure of one molecule of water, how many electrons must be shown?

Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
6 0

Answer:

Total 8 electrons.

Explanation:

To draw a complete lewis structure in water molecule we will calculate the total number of valence electrons

Valence electrons:

Two hydrogen atoms: 2 valence electrons (one each)

One oxygen atom : 6 valence electrons

So total there will be 8 electrons that must be shown in the structure.

Out of these 8, four will be involved in two covalent bonds

Rest four will be in the form of two lone pair of electrons on oxygen atom.

love history [14]3 years ago
5 0
In the Lewis structure, each single bond drawn between elements contain two electrons. The electron dots represent the lone pairs. These are the electrons that take part in the reaction. To obey the octet rule, the oxygen must have eight electrons around it. The hydrogen is exempted from this rule. Therefore, you have to show two electrons.

You might be interested in
Which is the correct net ionic equation for the following reaction: H3PO4 (aq) + 3 LiOH (aq) > Li3PO4 (aq) + 3 H2O (l)?
torisob [31]

Answer: The correct option for the chemical equation H_3PO_4(aq.)+3LiOH(aq.)\rightarrow Li_3PO_4(aq.)+3H_2O(l) is 1.

The correct option for the chemical equation 2HBr(aq.)+Co(OH)_2(aq.)\rightarrow CoBr_2(aq.)+2H_2O(l) is 3.

Explanation:

  • For the chemical equation:

H_3PO_4(aq.)+3LiOH(aq.)\rightarrow Li_3PO_4(aq.)+3H_2O(l)

H_3PO_4 is a weak acid and hence will not dissociate into ions whereas LiOH is a strong base and will easily dissociate into ions.

The product Li_3PO_4 is soluble in water and hence, will dissociate into its respective ions. Hence, the ionic equation for this reaction is:

H_3PO_4(aq.)+3Li^{3+}(aq.)+3OH^-(aq.)\rightarrow 3Li^{3+}(aq.)+PO_4^{3-}(aq.)+3H_2O(l)

Net ionic equation becomes:

H_3PO_4(aq.)+3OH^-(aq.)\rightarrow PO_4^{3-}(aq.)+3H_2O(l)

So, the correct option is 1.

  • For the chemical equation:

2HBr(aq.)+Co(OH)_2(aq.)\rightarrow CoBr_2(aq.)+2H_2O(l)

HBr and Co(OH)_2 are strong acid and strong base respectively, hence they will easily dissociate into ions.

The product, CoBr_2 is is soluble in water and hence, will dissociate into its respective ions. Hence, the ionic equation for this reaction is:

2H^+(aq.)+2Br^-(aq.)+Co^{2+}(aq.)+2OH^-(aq.)\rightarrow Co^{2+}(aq.)+2Br^-(aq.)+H_2O(l)

The net ionic equation becomes:

H^+(aq.)+OH^-(aq.)\rightarrow H_2O(l)

So, the correct option is 3.

4 0
2 years ago
Read 2 more answers
Gustave-Gaspard Coriolanus described this type of energy
Paha777 [63]
I believe it’s Chemical energy but please correct me if i’m wrong
8 0
3 years ago
The thyroid, parathyroid, and thymus are located in the
Studentka2010 [4]

Answer:

The pineal, hypothalamus, and pituitary are located in the BRAIN

The thyroid, parathyroid, and thymus are located in the THROAT

The adrenals, pancreas, testes, and ovaries are located in the NEAR THE KIDNEY

Explanation:

The pineal, hypothalamus, and pituitary are located in the BRAIN

The thyroid, parathyroid, and thymus are located in the THROAT

The adrenals, pancreas, testes, and ovaries are located in the NEAR THE KIDNEY

3 0
3 years ago
What is the value of ΔG in a spontaneous reaction?
Amanda [17]
The value of Triangle G is A) Less than 0.
7 0
3 years ago
Read 2 more answers
Calculate the density from the following information: A red block had a mass of 15.7 g. It was placed into a graduated cylinder
matrenka [14]

Answer:

Density should be 8.5

Explanation:

When you subtract 17.2-10.0 for water displacement you get 7.2 which is the volume and you divide it by 15.7 so your equation will be 15.7/7.2 = 8.5

4 0
3 years ago
Other questions:
  • What does the number next to isotopes signify?
    9·2 answers
  • What is metal ? Where does it coke from ?
    6·2 answers
  • Good evidence for sodium water
    7·1 answer
  • When 0.250 moles of a gas is placed in a container at 298K, it exerts a pressure of 93kPa. What is the volume of the container?
    11·1 answer
  • What can you infer about the growth of the seed type pictured in the graphs below? ( Note, the vertical axis represents the numb
    5·1 answer
  • Actual yield must be determined by
    6·1 answer
  • Please help with Chem I DON'T HAVE ENOUGH TIME!
    15·2 answers
  • HELPP PLEASEE this is science btw!!
    5·1 answer
  • If you had to explain to a friend how to balance a chemical equation, what
    12·1 answer
  • What do carbon, hydrogen, and oxygen atoms have in common?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!