Answer:
The molecular formula of the compound :
Explanation:
The empirical formula of the compound =
The molecular formula of the compound =
The equation used to calculate the valency is :
We are given:
Mass of molecular formula = 86 g/mol
Mass of empirical formula = 43 g/mol
Putting values in above equation, we get:
The molecular formula of the compound :
Answer:
D. Photosynthesis uses carbon dioxide while cellular produces carbon dioxide
The first ionisation energy of silicon is greater than that of phosphorus.
Answer: Once the vapor pressure of the system reaches a specific level, the rate of evaporation will slow down
Explanation: I really hope this helps :) - XxJaynaJxX
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.
