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
nekit [7.7K]
3 years ago
10

Which one of the following elements is stable?

Chemistry
1 answer:
Goshia [24]3 years ago
3 0
Group 18 are stable because thier outermost shell ocuppied with full of electrons and its chemically inert
You might be interested in
What is an important step to determine the number of grams of SO3 that can be produced by reacting 6 moles of SO2 with oxygen in
vagabundo [1.1K]

Answer:

480.40 g.

Explanation:

  • According to the balanced equation:

<em>2 SO₂(g) + O₂(g) → 2 SO₃(g),</em>

it is clear that 2.0 moles of SO₂ react with 1.0 mole of oxygen to produce 2.0 moles of SO₃.

  • We can get the no. of moles of SO₃ produced:

∵ 2.0 moles of SO₂ produce → 2.0 moles of SO₃, from the stichiometry.

∴ 6.0 moles of SO₂ produce → 6.0 moles of SO₃.

  • Then, we can get the mass of the produced 6.0 moles of SO₃ using the relation:

<em>mass =  no. of moles x molar mass of SO₃</em> = (6.0 moles)(80.066 g/mol) = <em>480.396 g ≅ 480.40 g.</em>

3 0
3 years ago
What is the volume or density
svetlana [45]

See the image below.

4 0
4 years ago
How are acids and bases defined by arrhenius?​
Lilit [14]

As defined by Arrhenius: An Arrhenius acid is a substance that dissociates in water to form hydrogen ions (H+). ... An Arrhenius base is a substance that dissociates in water to form hydroxide (OH–) ions. In other words, a base increases the concentration of OH– ions in an aqueous solution.

7 0
3 years ago
A specific combination of bonded atoms which always react in the same way is known as
grigory [225]
A specific combination of bonded atoms which always react in the same way, regardless of the particular carbon skeleton is known as the functional group. These are specific groups of atoms or bonds within organic molecules that accounts for the characteristic chemical reactions of those molecules.  Examples of functional groups are the Carbonyl group, alkyl Halides, aldehydes and ketones among others.
4 0
4 years ago
At 500 degree C, F_2 gas is stable and does not dissociate, but at 840 degree C, some dissociation occurs: F_2 (g) 2 F(g). A fla
bazaltina [42]

Answer:

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

Explanation:

F_2(g)\rightleftharpoons 2F(g)

Initial

0.600 atm    0

Equilibrium

(0.600 atm - p)        2p

Total pressure at equilibrium = P = 0.984 atm

P= 0.600 atm - p)+2p=0.984 atm

p = 0.384 atm

Partial pressure of the F_2 gas , p_{f_2}= (0.600 atm - 0.384 atm)=0.216 atm

Partial pressure of the F gas, p_{f} = 2(0.384 atm)=0.768 atm

K_p=\frac{(p_{F})^2}{p_{F_2}}

K_p=\frac{(0.768 atm)^2}{0.216 atm}=2.73

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

7 0
4 years ago
Other questions:
  • The equilibrium constant, Kc, is calculated using molar concentrations. For gaseous reactions another form of the equilibrium co
    6·1 answer
  • How do i separate gravel from water
    12·1 answer
  • What is the tendency of an atom to attract a pair of electrons that will bond?
    8·2 answers
  • Write down structures for three isomers of hexane​
    9·1 answer
  • A sample of carbon-12 a mass of 6.00g.How many atoms of carbon-12 are in the sample?
    11·1 answer
  • The MOST likely cause, directly and indirectly, for such a rise in sea level is A) global warming. B) increased sedimentation. C
    14·2 answers
  • Two students (X and Y) measured the diameter of a gold coin four
    12·1 answer
  • 300,000,000 m/s is the speed of ?
    11·1 answer
  • Is sodium a metal, nonmetal, or metalloid?
    15·2 answers
  • HELP QUICK Which of the following planets spins/rotates faster than earth?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!