A. MULTIPLE CHOICE. Read the question and statement below and write your answers in your activity notebook. 1. Many fish, insects, and including the common housefly, produce large amounts of Glycerol...

Extracted text: A. MULTIPLE CHOICE. Read the question and statement below and write your answers in your activity notebook. 1. Many fish, insects, and including the common housefly, produce large amounts of Glycerol (C3H§O3) in cold areas to lower the freezing point of their blood. What percent of oxygen is present in glycerol? A. 52.11% В. 51.11% C. 53.11% D. 50.11% 2. Which of the following calculations is NOT part of determining the percentage composition? A. molar mass B. atomic mass C. no. of atoms D. empi formula 3. What is the percent composition for carbon and hydrogen in ethane, C2H6? A. 33% C and 66% H B. 80% C and 20% H C. 20% C and 80% H D. 20% C and 60%H 4. Why is percent composition important? A. Use to convert between grams B. Can be apply to any particle representative C. To know the percentage mass of each element in compound D. None of the above 5. What is the percent composition for each element in sodium sulfate? А. 23% Na, 32%S, 16% O B. 32% Na, 23% S, 45% O С. 32% Na, 45% S, 23% O D. 23% Na, 45% S, 32% O