The nadh that enters the electron transport system is produced by all of the following processes except: answer glycolysis transition reaction fermentation krebs cycle

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6