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
Marat540 [252]
3 years ago
9

Which options correctly describe characteristics of noble gases? Select all that apply.

Chemistry
1 answer:
ANTONII [103]3 years ago
6 0

This is the only option that correctly describe characterisitics of noble gases.  

All noble gases have a unique atomic fingerprint.


All noble gases have valence shells with 8 electrons but Heilum has only 2 valence electrons.

And all noble gases do not easily react with other elements as they have their outermost shell completly filled so they are highly stable.

All noble gases emits different colored light when electrified.

You might be interested in
Heres a list of Compounds and Molecules
kobusy [5.1K]

Answer:

ibgb ybhy

Explanation:

7 0
2 years ago
A chef is serving a lunch special with 1 sandwich and 2 corn cobs per plate. If there are 5 sandwiches and 14 corn cobs, what is
shtirl [24]
5 plates is the highest amount that can be served

There’s only 5 sandwiches so 7 is automatically ruled out, there’s 14 corn cobs and 5 sandwiches only need 10 so it works out
7 0
3 years ago
Read 2 more answers
Which of these is an example of pseudoscience?
lianna [129]
I believe the answer is D, but not 100%
6 0
3 years ago
Read 2 more answers
How many electrons does nitrogen (N) need to gain to have a stable outer electron shell
earnstyle [38]
It need "3 electrons" to have a stable electronic configuration. 

'cause it has 5 electrons in it's outer shell & every atom needs 8 electrons. So, it requires 3 more!

Hope this helps!
7 0
3 years ago
Read 2 more answers
The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that dissolves in diethyl et
Alexxx [7]

<u>Answer:</u> The vapor pressure of solution is 459.17 mmHg

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}      .....(1)

  • <u>For testosterone:</u>

Given mass of testosterone = 7.752 g

Molar mass of testosterone = 288.4 g/mol

Putting values in equation 1, we get:

\text{Moles of testosterone}=\frac{7.752g}{288.4g/mol}=0.027mol

  • <u>For diethyl ether:</u>

Given mass of diethyl ether = 208.0 g

Molar mass of diethyl ether = 74.12 g/mol

Putting values in equation 1, we get:

\text{Moles of diethyl ether}=\frac{208.0g}{74.12g/mol}=2.81mol

Mole fraction of a substance is calculated by using the equation:

\chi_A=\frac{n_A}{n_A+n_B}

\chi_{\text{testosterone}}=\frac{n_{\text{testosterone}}}{n_{\text{testosterone}}+n_{\text{diethyl ether}}}

\chi_{\text{testosterone}}=\frac{0.027}{0.027+2.81}\\\\\chi_{\text{testosterone}}=0.0095

The formula for relative lowering of vapor pressure will be:

\frac{p^o-p_s}{p^o}=i\times \chi_{\text{solute}}

where,

p^o = vapor pressure of solvent (diethyl ether) = 463.57 mmHg

p^s = vapor pressure of the solution = ?

i = Van't Hoff factor = 1 (for non electrolytes)

\chi_{\text{solute}} = mole fraction of solute (testosterone) = 0.0095

Putting values in above equation, we get:

\frac{463.57-p^s}{463.57}=1\times 0.0095\\\\p^s=459.17mmHg

Hence, the vapor pressure of solution is 459.17 mmHg

7 0
3 years ago
Other questions:
  • In this experiment you will measure the stretching frequencies of different functional groups in a series of organic molecules.
    13·1 answer
  • Write a complete electron configuration for borin
    9·1 answer
  • When the skateboarder reaches the top of the half-pipe, what type of energy is at it's maximum?
    12·1 answer
  • What effect does reducing your carbon footprint have on the environment?
    6·1 answer
  • What form of energy flows through a copper wire connecting the two ends of a battery? A)heat energy B) electric energy C) chemic
    7·1 answer
  • Plant cell organelle
    5·1 answer
  • The vertical columns on the periodic table of elements are called periods
    11·2 answers
  • What is the chemical formula for Mg2+ and I1- ( magnesium and iodine)
    14·2 answers
  • How do birth and death rates affect a population size?
    12·1 answer
  • Which of the following is a physical model of the Sun? A. an equation that describes the Sun’s motion B. a chart that lists the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!