A gas had a volume of 25.0 liters at 400.0 C and standard pressure. The gas was cooled until the volume was 12.5L at standard pressure. What was the final Celsius temperature of the gas?

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

What are fossils of organisms that existed over a wide area but only for a limited time period called?