The balance of forces allows to find the result for the question if the isotope of boron 9.99 una is stable:
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The boron isotope of mass 9.99 uma is unstable because the repulsive force increases.
The stability of atomic nuclei depends on the balance the force is electrostatic repulsion between the protons and the strong interaction of attraction.
One way to achieve this balance is to increase the separation of the protons with uncharged particles between them, the neutral ones, the strong interaction is of the same magnitude for protons and neutrons, therefore the repulsion is decreased and the strong attraction interaction is maintained. .
In the case of Boron, which has 5 protons, the stable structures have more atomistic 10 and 11 una, which is why it has 5 and 6 neutrons each. Therefore each proton has a neutrons next to it and in the other case a proton at the end has two neutrons, this causes the distance between the protons to increase, decreasing the electrostatic repulsion.
It indicates that we have a Boron nucleus of mass 9.999. The number of protons must remain fixed, therefore there are only 4 neutrons.
Consequently, some of the protons does not have a neutron next to it and can approach the other proton, therefore the electrostatic repulsion increases and the stability of the atom decreases.
In conclusion, using the balance of Forces we can find the result for the question if the isotope of boron 9.99 una is stable:
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The boron isotope of mass 9.99 amu is unstable because the repulsive force increases.
Learn more about nuclear stability here: brainly.com/question/897383
Answer : The complete question is attached in the answer.
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The Ferric ion when combined with thiocyanide forms a ion (iii) thiocyanate complex.
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Here, the nickel reacts in solid state with 6 moles of ammonia and forms a nickel-ammonium complex.
Answer 3) : To show the colour change using phenolphthalein indicator with pH we can use HIn and In to show the relationship of chemical equilibrium.
when phenolphthalein is added as an indicator in titration it forms a clear complex and when it reacts with water it forms hydronium ion and the indicator is left alone which gives pink colour as the end point.
Answer 4) : When calcium hydroxide undergoes dissolution or formation happens the chemical equilibrium can be shown as follows:
Calcium hydroxide when dissolved in water forms calcium ions and hydroxyl ions are liberated in water.
Answer 5) To show the chemical equilibrium between cobalt and chloride forming cobalt chloride is as follows:
Here, in this reaction the cobalt hydorxide complex when comes in contact with chloride ions forms cobalt-chloride complex along with 6 moles of water.
There are 5 protons in Boron 1.
the equilibrium concentration of H₂(g) at 700°C = 0.00193 mol/L
0.00193 mol/L
Given that:
numbers of moles of H₂S = 0.59 moles
Volume = 3.0-L
Equilibrium constant = 9.30 × 10⁻⁸
The equation for the reaction is given as :
2H₂S ⇄ 2H₂(g) + S₂(g)
The initial concentration of H₂S =
The initial concentration of H₂S =
= 0.1966 mol/L
The ICE table is shown be as :
2H₂S ⇄ 2H₂(g) + S₂(g)
Initial 0.9166 0 0
Change -2 x +2 x + x
Equilibrium (0.9166 - 2x) 2x x
(since 2x < 0.1966 if solved through quadratic equation)
The equilibrium concentration for H₂(g) = 2x
∴
= 0.00193 mol/L
Thus, the equilibrium concentration of H₂(g) at 700°C = 0.00193 mol/L
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Answer:
The three definitions are listed in the explanation.
Explanation:
A nonelectrolyte is a molecular compound that does not consist of ions hence it does not dissociate into ions in solution.
A weak electrolyte is a soluble ionic compound that dissociates only to very small extent into ions in solution.
A strong electrolyte is a soluble ionic compound that dissociates completely into ions when dissolved in water.