Which of the following could be the freezing point of a solution containing potassium iodide dissolved in water?
Question 3 options:

-4 degrees Celsius

32 degrees Celsius

10 degrees Celsius

100 degrees Celsius

0 degrees Celsius

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c

What 3 categories are elements divided