Explanation:
It is known that ionic compounds are the compounds formed by transfer of electrons from one atom to another. Ionic compounds have high boiling point because their combining atoms contain opposite charges due to which strong forces of interaction exists between them.
A metallic bond is formed due to mobile valence electrons shared by positive nuclei in a metallic crystal.
When a bond is formed by sharing of electrons between the combining atoms then the compound formed is known as covalent compound. In these compounds there exists weak forces due to sharing of electrons and therefore, they have low boiling point.
Hydrogen bonding is defined as a bonding which exists between a hydrogen atom and an electronegative atom like O, N and F.
Therefore, out of the given options KI is an ionic compound and it will have high boiling point due to the presence of strong interactive forces between hydrogen and fluoride ions. being a covalent compound has low boiling point.
The compound HF has hydrogen bonding and its boiling point is around . Whereas HI has low boiling point due to the large difference in the size of H and I. Magnesium being a metallic solid will have boiling point more that a covalent compound but less than an ionic compound.
Thus, we can conclude that given species are arranged from highest boiling point (top) to lowest boiling point (bottom) as follows.
KI > Mg > > HF > HI
Answer:
3.064 $
Solution:
First of all we will find the number of pounds contained by one Kg. Therefore, it is found that,
1 Kilogram = 2.20462 Pounds
Hence, as given,
1 Pound of Margarine costs = 1.39 Dollars
So,
2.20462 Pounds Margarine will cost = X Dollars
Solving for X,
X = (2.20462 Pounds × 1.39 Dollars) ÷ 1 Pound
X = 3.064 Dollars
All organic material has decaying Carbon-14 in it. But if plants and animals are still alive, they constantly replace the supply of Carbon in their systems so the amount of Carbon 14 in the system stays constant. Once a plant or animal dies, the Carbon is no longer regenerated and so the Carbon 14 starts to decay.
Answer:
did you ever get the answer lol