In a mixture of n2 and o2 gases, the mol fraction of n2 is found to be 0.700. the total pressure of the mixture is 1.42 atm. what is the partial pressure of o2 in the mixture?

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

How would you reduce the volume of gas

1. list three scientific reasons cockroaches may fly.