Answer:
pluto is considered a dwarf planet because it did not meet the three criteria the IAU uses to define a full sized planet
Explanation:
If element X has 85 protons, then it has 85 electrons.
No matter what element it is, there will ALWAYS be the same amount of protons as there are electrons.
By the way, thanks for asking this question. I just learned this yesterday, so it gave me a way to show what I learned.
The data for the heat of fusion for the isopropyl alcohol is 3.301 kJ/mol. This data was taken from Parks and Kelly (1928). After acquiring this data, we can now calculate for the amount of heat:
(3.301 kJ/mol) x (1. 37 mol) = 4.52 kJ
Thus, the amount of heat required to completely melth 1.37 mol of solid isopropyl alcohol at its melting point (184 K) is 4.52 kJ.
Answer:
B. All of the Above
Explanation:
Sea of electrons -
This model of the metallic bonding helps in explaining the properties like , malleability , ductility ,high electrical conductivity , luster ,high thermal conductivity of the metals in solid state .
The metallic bonding is between metal atoms and the ionic bond links a metal and a non - metal together ,
In case of metallic bonding , bulk of metal atoms are joined .
hence from the question , all the given properties are correct .