These oppositely charged compounds are strongly held by electrostatic forces of attraction as these be together for a long time the rise in temparature occurs so that the the melting points rises in them.
B and c...will lose electron(s) in forming an Ion.
P is an Anion
b..Fe. and c...Pb form Cations (+) by losing electrons.
d. Se is an Anion.
D. The particles are tightly packed together
A serial dilution is the stepwise dilution of a substance in solution. Usually the dilution factor at each step is constant, resulting in a geometric progression of the concentration in a logarithmic fashion.
Answer:
Magnesium oxide = MgO
Iron = Fe
Iron (III) Oxide = Fe₂O₃
Magnesium = Mg
Skeleton equation = MgO + Fe ⇒ Fe₂O₃ + Mg