Question | Answer |
an atom has 4 protons how many electrons does it have? | 4 |
the postitivly and negatively charged atoms are known as... | ions |
which set of atoms already have a full set of valence electrons | carbon |
describe the parts of a atom including there charge. | electrons-negative
protons-positive
nutrons-no charge |
what is the difference bettween ionic bonds and covalent bonds | covalent bonds share electrons and ions steal electrons |
what is a chemical formula and provide a example | it tells you the number of atoms of each element in a compound ex. C6H12O6 |
what is a hydrogen bond | a weak bond between 2 molecules |
what is a enzyme | they are macromolecular biological catalysts |
name 6 elements required for life | oxyegen, hydrogen,nitrogen,carbon,calcium,and phosphorus |
what makes carbon unique | it can make a covalent bond to as many as 4 different atoms |
lipid | stores energy |
carbohydrate | provides energy |
nucleic acid | stores genetic info |
protien | contols rate of chemical reactions through enzymes |
what type of bond is between 2 amino acids | hydrogen |
carbohydrate id | CHO or ring structure |
protein id | CHONPS |
lipi id | CHO |
nucleic acid id | CHOP |
why is water unquie | its hydrogen bonding, its polar |
what are the 2 parts of a nucleic acid | DNA, RNA |