Assuming that the half-life of Isotope Q is 7.5 minutes, what amount of an original 150.0 gram sample of Isotope Q will remain after a half hour?

1. 37.5 g
2. 18.75 g
3. 80 g
4. 9.375 g

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.