The ionic compound will be soluble in water.
The value of the heat of solution of a substance is one of the factors that determine whether a substance will dissolve or not. A negative heat of solution signifies that the reaction will be spontaneous, so the ionic compound will dissolve in water.
In order to determine if the ion is positively charged or negatively charged
Answer:
1. A photon is emitted by the atom.
2. More energy is emitted or absorbed for case 2
Explanation:
The Bohr's model of the atom was based on quantum mechanics idea. He suggested that electrons move in specific spherical orbits round the nucleus.
The claims of his model emphasized on the premise that electrons only move in permissible orbits or energy levels round the nucleus.
The ground state is the lowest energy state available where n= 1.
The excited state is energy levels of n = 2,3,4 .....
Problem 1
For an electron to return to the ground state from a higher energy level, i.e from 5 to 2 in case 1, energy is emitted in form of photons.
Problem 2
More energy is emitted or absorbed when an electron moves from a higher energy level to a more lower one or jumps from a lower energy level to a more higher one.
Answer:
6moles of Li : 1 mole of N₂
Explanation:
The reaction equation is given as:
6Li + N₂ → 2Li₃N
Mole ratio of Li to N₂;
From the balanced reaction equation:
6 moles of Li will react with 1 mole of N₂;
The mole ratio is:
6moles of Li : 1 mole of N₂
