Which compound is shown in the illustration? Thank you!!
2 answers:
Answer: a hydrocarbon
Explanation:
1. Functional group is a specific group of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.
2. A halogen is the name of group 17 elements containing fluorine, chlorine, bromine, iodine and astatine.
3. A hydrocarbon is a compound containing carbon and hydrogen. Example: alkanes, alkenes and alkynes.
Propane is an alkane with molecular formula .
4. An ester is a functional group .
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Answer: Option (C) is the correct answer.
Explanation:
A positive value of enthalpy or means that energy is being absorbed from the surrounding. As
has strong ionic bonding between both calcium and fluorine atoms. So, to break their bond we need to provide energy to it.
So, when is dissolved in warm water then warm water molecules will bombard with the stable bond of
. As a result, the energy will transfer from water to the bond in order to break it. And, due to loss in internal energy then there will be consequent lowering of temperature.
When this bond is broken down then the atoms will separates into gaseous ions and these ions will be then surrounded by the water molecules. As ithe bond between is very strong hence, its lattice energy will be very high.
Thus, we can conclude that the statement ions have very strong interactions with
ions in the crystal lattice, best helps to why the value of
degree for the
in water in positive.