Triglycerides are molecules consisting of one 3-carbon compound called bound to three .

propane-1,2,3-triol bound to three fatty acids.

Explanation:

Triglycerides are compounds formed by reaction of propane-1,2,3-triol and three fatty acids as shown in the image attached. The fatty acids react with the -OH groups of the triol as usual forming three ester linkages in the triglyceride. The reaction is fully typified in the image attached.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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