Which of the following is a synthesis reaction? c2h4 + 3o2 yields 2co2 + 2h2o 2hbr yields h2 + br2 co2 + h2o yields h2co3 f2 + 2 hcl yields cl2 + 2hf

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

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

What are the similarities of physical and chemical change ?