Dalton's Law: A flask contains two gases: the first gas has a pressure of 0.5 atm and the second gas has a pressure of 0.1.5 atm. What is the total pressure?

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.