The Moon completes one orbit around the Earth in approximately 27 1/3 days and completes one cycle of its phases in approximately 29 1/2 days. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has come to your great help.
Answer:
Corrosion is the process of deterioration of materials as a result of chemical, electrochemical or other reactions. Rusting is a part of corrosion and is a chemical process which results in the formation of red or orange coating on the surface of metals. ... Rust or rusting can affect only iron and its alloys.
Explanation:
It is in Group 3A = 3 valence electrons
Electron Config. = 1s2 2s2 2p6 3s2 3p1
Answer:
Epidermis
Explanation:
The epidermis lacks blood vessels.
Answer: The formula of the hydrated alumina is 
Explanation:
Decomposition of hydrated alumina is given by:
Molar mass of 
= 101.96 g/mol
According to stoichiometry:
(101.96+18x) g of 
decomposes to give 101.96 g of
Thus 5.000 g of
decomposes to give=
of H_2O
But it is given 5.000 g of a sample of hydrated salt was found to contain 2.6763 g of unhydrated salt
Thus we can equate the two equations:
Thus the formula of the hydrated alumina is
