Recent content by mou

1. What happens to blood as it passes through a kidney machine? A. CO2 is removed B. Glucose is added C. Oxygen is added D. Urea is removed 2. What causes the decrease in oxygen concentration in a lake polluted by sewage? A. a decrease in the dissolved nitrate concentration. B. a decrease in...

1. Sucrose (cane sugar) doesn't react with Benedict's solution. 2. Sucrose molecules consist of a pair of molecules joined together. 3. Sucrose can be split into two smaller molecules by the process of hydrolysis. 4. Each of these smaller molecules will react with Benedict's solution. 5...