Answer:
A. air pressure,this is answer.
Answer:
Normal boiling point is the temperature at which a liquid boils at 1 atmosphere of pressure.
Explanation:
Answer:
It is a compound made up of one Calclum atom and 2 Chloride atoms.
It comes from a synthesis based reaction:
Ca + Cl = CaCL2
The letters you see are the abbreviations of the elements taken from the periodic table of elements.
Explanation:
In the reaction,
Cr3+(aq) + 6H2O -------> [Cr(H2O)6]3+(aq)
Cr3+ IS THE LEWIS ACID H2O is the Lewis base.
A Lewis acid is a compound or chemical that accepts a lone pair of electrons. In the above equation, Cr3+ is accepting the lone pair of electrons.
MgCl2 because it is the only option in which a metal appears with a nonmetal. In this case, the metal transfers electrons to the nonmental because the metal has a lower ionization energy.