5. Which of these amino acids would have a positive charge at pH 7.0? a) Lys b) Asp
c) Met
d) Gly

6. Which of these amino acids has three nitrogen atoms in its structure? a) Lys
b) Arg
c) Tyr
d) Val

7. Beta sheets are an example of:
a) primary structure
b) secondary structure
c) tertiary

The sum of the oxidation numbers in a neutral compound is always

Type the correct answer in the box. tungsten carbide is becoming popular for making jewelry. a chemist is examining a sample of tungsten carbide (chemical formula wc). what is the percent composition of tungsten in this compound? round your answer to the nearest whole percent. the percent composition of tungsten is what %?

How many atoms of each element are in the chemical formula p205