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
rodikova [14]
3 years ago
10

Which sphere exists because of there is liquid iron as part of the earth's core?

Chemistry
2 answers:
Bingel [31]3 years ago
8 0
I think the answer is C.lithosphere. but i,m not 100% sure.
Feliz [49]3 years ago
4 0
The answer is the magnetosphere 
You might be interested in
Yvvyycyvybny just gfy
mario62 [17]

Answer:

slkahglsjch! iwejafhblkahbje :)

Explanation:

7 0
3 years ago
Frozen water is less dense than liquid water, allowing lake organisms to survive winter.
klasskru [66]

True.

hope this helps!

7 0
3 years ago
Read 2 more answers
Calculate the equilibrium number of vacancies per cubic meter for copper at 1000K. The energy for vacancy formation is 0.9eV/ato
nexus9112 [7]

Answer:

Therefore the equilibrium number of vacancies per unit cubic meter =2.34×10²⁴ vacancies/ mole

Explanation:

The equilibrium number of of vacancies is denoted by N_v.

It is depends on

  • total no. of atomic number(N)
  • energy required for vacancy
  • Boltzmann's constant (k)= 8.62×10⁻⁵ev K⁻¹
  • temperature (T).

N_v=Ne^{-\frac{Q_v}{kT} }

To find  equilibrium number of of vacancies we have find N.

N=\frac{N_A\ \rho}{A_{cu}}

Here ρ= 8.45 g/cm³  =8.45 ×10⁶m³

N_A= Avogadro Number = 6.023×10²³

A_{Cu}= 63.5 g/mole

N=\frac{6.023\times 10^{23}\times 8.45\times 10^{6}}{63.5}

   =8.01\times 10^{28 g/mole

Here Q_v=0.9 ev/atom , T= 1000k

Therefore the equilibrium number of vacancies per unit cubic meter,

N_v=( 8.01\times 10^{28}) e^{-(\frac{0.9}{8.62\times10^{-5}\times 1000})

   =2.34×10²⁴ vacancies/ mole

3 0
3 years ago
Which choice(s) correctly rank(s) the bonds in terms of increasing polarity?
Marina CMI [18]

Answer:

(II) only correctly rank the bonds in terms of increasing polarity.

Explanation:

Bond polarity is proportional to difference in electronegativity between bonded atoms.

Atoms    Electronegativity          Bond        Electronegativity difference

Cl                          3.0                       Cl-F                      1.0

Br                          2.8                       Br-Cl                     0.2

F                            4.0                       Cl-Cl                      0

H                            2.1                       H-C                       0.4

C                            2.5                       H-N                       0.9

N                             3.0                      H-O                       1.4

O                             3.5                      Br-F                       1.2

I                               2.7                      I-F                         1.3

Si                             1.9                      Cl-F                       1.0  

P                              2.2                      Si-Cl                      1.1

                                                          Si-P                        0.3

                                                          Si-C                        0.6

                                                           Si-F                        2.1

So, clearly, order of increasing polarity : O-H > N-H > C-H

So, (II) only correctly rank the bonds in terms of increasing polarity

4 0
3 years ago
Noble gas notation for platinum
SOVA2 [1]

Pt

Hope this helps!!!

4 0
3 years ago
Other questions:
  • Physical and chemical properties<br><br> what is density when mass is 5.2 and volume is 0.117
    8·1 answer
  • Dinitrogen tetraoxide formula
    8·2 answers
  • Do you expect potassium iodide to be soluble in cyclohexane
    12·2 answers
  • Predict which surface will melt ice faster. Wood or metal? Why?
    10·2 answers
  • How will you solve this?
    13·1 answer
  • What are the coefficients for the following equation when it is balanced?
    12·1 answer
  • Consider the balanced reaction below:
    12·1 answer
  • What is also known as neutralization? 1. Acid-base 2. Redox 3. Precipitation
    7·1 answer
  • Simple land plants lack seeds and
    11·2 answers
  • Select the correct answer.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!