If an amino acid contained a hydrocarbon (a group of multiple carbons and hydrogens linked together) as its side group, in which of the following categories could it be appropriately designated?
a) hydrophilicb) polar
c) nonpolard) basice) acidic

Nonpolar

Explanation:

If the side group of the amino acid is an hydrocarbon, the amino acid would be nonpolar, meaning that it would not be able to interact with water, because water is a polar substance. Non polar molecules are only soluble in nonpolar solvents.

The forces between hydrocarbons molecules (London dispersion forces) differ so much from the forces between water molecules (hydrogen bonds), meaning that when put together, those differences would require so much energy to be overcome, so the system (solution) would tend to always be in the lower energy state, meaning that the mixing would not occur.

explanation: no but i do not usually comment

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-