1.


How many electrons does carbon have available for chemical bonding?


one

two

four

2.


Lipid is another name for a ________.


fat

starch

carbohydrate

3.


___________ serves as the backbone of all the bio-organic molecules.


carbon

hydrogen

glycerol chain

Respuesta :

1.     5

5 electrons

Hydrogen shares its only electron with Carbon to get a full valence shell. Now Carbon has 5 electrons. Because each Carbon atom has 5 electrons--1 single bond and 3 unpaired electrons--the two Carbons can share their unpaired electrons, forming a triple bond

2.   Fat

3.   Carbon   serves as the

For #1 the answer is 4