Answer: B
Explanation: Queen B told me
magnesium + oxygen =magnesium oxide
magnesium oxide = magnesium
magnesium + oxygen magnesium + oxygen
Answer: magnesium + oxygen =magnesium oxide
Explanation: When Magnesium reacts with the molecules of oxygen , Magnesium oxide is produced.
Mg (s) + O (g) → MgO (s)
In this equation, both magnesium and oxygen are present in its elemental state.
Magnesium is present in solid form and oxygen is present in gaseous form.
The Bonding between the Magnesium and the oxygen is purely IONIC bonding as Magnesium loses its 2 valence electrons to complete its octet and oxygen gains its electrons to make its electron count 8 in the valence shell.
Answer: (B) Magnesium + oxygen =magnesium oxide
Explanation:
B. Solids are high in density and compressible.
C. Solids are low in density and incompressible.
D. Solids are high in density and incompressible.
Answer: Option (D) is the correct answer.
Explanation:
Solids are the substances whose molecules are closely packed together due strong inter molecular forces between them. This causes the solid to have a fixed shape and volume.
Whereas density is mass divided by per unit volume.
Mathematically, Density =
Since, density is proportional to mass. So, more is the mass that is, more is the number of molecules held together by strong forces more will be its density.
Therefore, we can conclude that the statement solids are high in density and incompressible, best describes solids.
Answer:
C. Heterogeneous
Explanation: