AP Chemistry Multiple Choice Practice Test

Question 1 of 3
63% Get this Question Right
What is the percent composition of silicon nitride (Si3N4)?
54.03% Si and 45.97% N
69.40% Si and 30.60% N
30.21% Si and 69.79% N
42.92% Si and 57.08% N
60.06% Si and 39.94% N