How many moles of O2 are needed to react with 2.45 mol of C2H2 ?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid