Missing question:
KNO₃(s) + energy ⇄ K⁺(aq) + NO₃⁻(aq)
Which change causes the equilibrium to shift?
(1) increasing pressure .
(2) increasing temperature.
(3) adding a noble gas.
(4) adding a catalyst.
Answer is: (2) increasing temperature.
<span>This is endothermic reaction, because heat is included as reactant.
According to Le
Chatelier's Principle, the position of equilibrium moves to counteract the
change, because heat (temperature) is increased, system consume that heat, so
equilibrium is shifted to right, by decreasing concentration of reactants and
increasing concentration of product.</span>
Answer:
Bond length.
Explanation:
During formation of a covalent bond between atoms the total potential energy of the new molecule is less than the sum of energy of the two atoms. This is the energy orientation for the formation of bond. This is due to gain of stability by full filling the octet of the atoms. In covalent bond sharing of electrons occur. When two atoms approach each other there is decrease in energy till the bond length of the molecule, after this if we try to minimize the distance between atoms, the repulsion forces start to act their role.
Answer : The net ionic equation will be,
Explanation :
In the net ionic equations, we are not include the spectator ions in the equations.
Spectator ions : It is defined as the ions present on reactant and product side that do not participate in the reactions. That means the same ions present on both the sides.
The given balanced ionic equation will be,
The ionic equation in separated aqueous solution will be,
In this equation, 
ions are the spectator ions.
By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.
The net ionic equation will be,
8.769 x 10^-4
it will be your answer
The number of neutrons is 22
