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
Delvig [45]
3 years ago
5

Noble gases are.

Chemistry
2 answers:
rodikova [14]3 years ago
8 0
Noble gases are very stable as they have a full outer shell.
pashok25 [27]3 years ago
7 0
They are nonreactive because their outer shell is full of valence electrons 
You might be interested in
What was the robotic vehicle Opportunity designed to do?
mestny [16]
I believe the answer is C
6 0
3 years ago
Read 2 more answers
'Suppose you take 0.0332 kg of ammonium carbonate and dissolve it using 0.0395 kg of water. What would be the mass percent conce
VMariaS [17]

The solution is 45.7 % (NH₄)₂CO₃ by mass.

Mass of solution = 0.0332 kg + 0.0395 kg = 0.0727 kg

% (NH₄)₂CO₃ = Mass of (NH₄)₂CO₃/Total mass × 100 % = 0.0332 kg/0.0727 kg × 100 % = 45.7 %


8 0
3 years ago
The PH of a 0.1 M MCl (M is an unknown cation) was found to be 4.7. Write the net ionic equation for the hydrolysis of M and its
Serggg [28]

Answer:

6.25 X10^{-9} = Ka

Kb= \frac{10^{-14}}{6.25 X10^{-9}}= 1.6X10^{-6}

Explanation:

The ionic equation for the hydrolysis of the cation of the given salt will be:

M^{+} + H_{2}O ---> MOH + H^{+}

The expression for Ka will be:

Ka = \frac{[H^{+}][MOH]}{[M^{+}]}

As given that the concentration of the salt is 0.1 M and pH of solution = 4.7, we can determine the concentration of Hydrogen ions from the pH

pH = -log [H⁺]

[H⁺] = antilog(-pH) = antilog (-4.7) = 2 X 10⁻⁵ M = [MOH]

Let us calculate Ka from this,

Ka = {2.5X10^{-5}X2.5X10^{-5}}{0.1} = 6.25 X10^{-9}

The relation between Ka an Kb is

KaXKb =10⁻¹⁴

Kb= \frac{10^{-14}}{6.25 X10^{-9}}= 1.6X10^{-6}

6 0
3 years ago
The mechanical advantage required to lift a clay block?
Oxana [17]
Electrical?

Hope this helps
7 0
3 years ago
Read 2 more answers
I need all these im not in the mood for it toddayyy
fomenos

Answer:

Me too

Explanation:

7 0
2 years ago
Other questions:
  • WILL MARK BRAINLIEST
    14·2 answers
  • Which of the following is an example of mechanical weathering
    10·1 answer
  • Which of the following is most likely a solid that is not a good conductor of electricity? A. Nickel B. Sodium C. Silicon D. Flu
    6·1 answer
  • Which of the following is an appropriate response to carbon monoxide (CO) poisoning?A) hyperventilation to exhale CO from the bo
    8·1 answer
  • A certain first-order reaction (A→products) has a rate constant of 7.20×10−3 s−1 at 45 ∘C. How many minutes does it take for the
    8·1 answer
  • Which structure of the organism work together to carry out all of its life functins?
    7·1 answer
  • Fields of Study Alferd Wegener
    10·1 answer
  • A radioactive nucleus can change from one element to another. How does this happen?
    15·1 answer
  • Does Phosphorus (P) gain/lose electrons to form ions
    5·1 answer
  • What is the name of the bond that joins amino acids
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!