In coca cola the ingridents are : CARBONATED WATER. HIGH FRUCTOSE CORN SYRUP.
CARAMEL COLOR.
PHOSPHORIC ACID.
NATURAL FLAVORS.
CAFFEINE. my question is that is the caffienne turning it black or the carmel coler

Coca-Cola (and other Colas) are dark because food colouring is added to the mixture (caramel colour) to create the traditional colour of colas.

Today we still colour our colas this way, because of tradition: That is the colour colas are supposed to be.

Explanation:

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.