Methane burns in oxygen as shown by the equation: CH.(g) + 202(g) + CO2(g) + 2H2O(g)
If the methane and oxygen are at the same
temperature and pressure, calculate:
(a) The volumes of carbon dioxide and water
vapour produced by the combustion of 1.2 L of
methane in excess oxygen.
(b) The volume of gas produced by the combustion
of 25 mL of methane.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Is laundry detergent an acid or a base?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.