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
Tasya [4]
3 years ago
13

How many electrons are there in the valence shell of the oxygen atom of water? O a. 2 O 6.4 OC.6 O d. 8

Chemistry
1 answer:
denpristay [2]3 years ago
7 0

Answer:

d. 8

Explanation:

Valence electrons of oxygen = 6

Valence electrons of hydrogen = 1  

The total number of the valence electrons  = 6 + 2(1) = 8

The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete.

In the water molecule,

<u>Oxygen has 2 bond pairs and two lone pairs which means that the total electrons in the valence shell is 8.</u>

You might be interested in
Which sample is a pure substance?zinc oxidesugar dissolved in waterpond watersoil.
AnnZ [28]

Answer:

Oxide sugar dissolved in water pond

because water + sugar= sugar melts but the oxide purifys the water.

Explanation:

<u><em>#carryonlearning!</em></u>

6 0
2 years ago
What is the definition of a chemical bond?
Gnom [1K]

Answer:

B

Explanation:

bonding is a process of two different atoms sharing electrons for stability and these electrons are attracted by one atom losing it's electrons to another

7 0
2 years ago
Cho 2.3 gam natri vào 100ml nước . Tính nồng độ dung dịch thu được ( C% )
Anton [14]

Answer:

maybe speak in english than we can understand and help you sorryy

8 0
2 years ago
If you had to explain to a friend how to balance a chemical equation, what
Evgesh-ka [11]

Answer:

make sure that the number of atoms on the left side of the equation equals the number of atoms on the right.

Explanation:

5 0
3 years ago
There are two binary compounds of mercury and oxygen. heating either of them results in the decomposition of the compound, with
grandymaker [24]

\text{Hg} \text{O} and \text{Hg}_{2} \text{O}.

Assuming complete decomposition of both samples,

  • m(\text{Hg}) = m(\text{residure})
  • m(\text{O}) = m(\text{loss})

First compound:

  • m(\text{O}) = m(\text{loss}) = 0.6498 - 0.6018 = 0.048 \; g
  • m(\text{Hg}) = m(\text{residure}) = 0.6018 \; g

n = m/M; 0.6498 \; g of the first compound would contain

  • n(\text{O atoms}) = 0.048 \; g  / 16 \; g \cdot mol^{-1}= 0.003 \; mol
  • n(\text{Hg atoms}) = 0.6018 \; g  / 200.58 \; g \cdot mol^{-1}= 0.003 \; mol

Oxygen and mercury atoms seemingly exist in the first compound at a 1:1 ratio; thus the empirical formula for this compound would be \text{Hg} \text{O} where the subscript "1" is omitted.

Similarly, for the second compound

  • m(\text{O}) = m(\text{loss}) = 0.016 \; g
  • m(\text{Hg}) = m(\text{residure}) = 0.4172 - 0.016 = 0.4012  \; g

n = m/M; 0.4172 \; g of the first compound would contain

  • n(\text{O atoms}) = 0.016 \; g  / 16 \; g \cdot mol^{-1}= 0.001 \; mol
  • n(\text{Hg atoms}) = 0.4012 \; g  / 200.58 \; g \cdot mol^{-1}= 0.002 \; mol

n(\text{Hg}) : n(\text{O}) \approx  2:1 and therefore the empirical formula

\text{Hg}_{2} \text{O}.

8 0
3 years ago
Other questions:
  • A solution of NaCl has a concentration of 1.50 M. The density of the solution is 1.06 g/mL. What is the concentration solution b
    15·2 answers
  • An enzyme can catalyze a reaction with either of two substrates, S1 or S2. The Km for S1 was found to be 2.0 mM, and the Km, for
    9·1 answer
  • The density of gold is 19.3 g/cm3. The density of iron pyrite is 5.0 g/cm3. If a nugget of iron pyrite and a nugget of gold each
    8·2 answers
  • how many calories are absorbed by a pot of water with a mass of 500 g in order to raise the temperature from 20 c to 30 c
    5·1 answer
  • 1. Which is not an example of a physical change to a wooden stick?
    12·1 answer
  • The _____ rate is the number of particles that react in a given time to form products.
    7·2 answers
  • (R)-Limonene is found in many citrus fruits, including oranges and lemons. Draw its structures and identify the relationship bet
    11·1 answer
  • PLEASE HELP!!
    13·1 answer
  • How does the lithosphere affect wildfires
    6·1 answer
  • What current (in a) is required to plate out 2. 96 g of nickel from a solution of ni2 in 27. 12 minutes?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!