Which of the following does the illustration depict?
glycosidic bond
peptide bond
sugar bond
hydrogen bond

The correct answer is peptide bond.

Explanation:

A peptide bond refers to a chemical bond produced between the two molecules when the amino group of one molecule reacts with the carboxyl group of the other molecule, discharging a water molecule. This is an illustration of a condensation reaction, also known as a dehydration synthesis reaction, and generally takes place between the amino acids. The formed CO-NH bond is known as a peptide bond, and the formed molecule is an amide.

  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-

i believe the answer is true.