How much heat will be released from the combustion of 45.5 grams of ch4 in an excess of oxygen gas? ch4 (g) + o2 (g) ( co2 (g) + h2o (l) +890 kj .

What was the procedure by which case united states vs lopez went to court

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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