Why is there a pop sound when a burning splint is extinguished in a test tube filled with hydrogen gas?
why does hydrogen burn with a pop sound?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

4. glenn andrews recently bought a motorcycle for $3,950. if he had to pay 6% sales tax on the bike, what was the total cost of the motorcycle?

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.