It's not the valences electrons themselves, but the number of valence electrons that determines the chemical properties of an element
The last row going across
Answer:
Define a problem, form a hypothesis, gather experimental data, form a conclusion
Answer:
The ability of the molecule to pack more tightly increases the melting point.
Explanation:
In hydrocarbons of same molecular formula, melting point is determined by:
- weak intermolecular forces
- Molecular symmetry
Higher the intermolecular forces and molecular symmetry, higher will be the melting point.
Intermolecular forces in hydrocarbons decreases with branching. Moreover, branching interfere the tight packing of the molecule in the crystal. Therefore, branched hydrocarbons tend to have lower melting point.
However, in highly branched hydrocarbons molecular symmetry increases which results in tight packing of the molecule in the crystal.
So, highly tight packed molecules tend to have high melting point.
As (CH3)2CHC(CH3)3 is highly branched and has high molecular symmetry, therefore, its melting point is highest among given.
So, among the given, option c is correct.
~Hello There!~
Considering that there are 100 cm in a meter, half of that would be 50.
Your answer is C. 50.
Hope This Helps You!
Good Luck :)
Have A Great Day ^_^
- Hannah ❤
