Chemistry, 10.12.2019 10:31 kutemigos9211
If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but you cannot hear it. why?
a) light waves travel very fast and sound waves travel much slower.
b) sound waves transmit energy while light does not transmit energy.
c) sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.
d) light is a mechanical wave and needs a medium to travel through while sound is an electromagnetic wave.
Answers: 2
Chemistry, 21.06.2019 15:00, jujurocks10
If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.
Answers: 1
Chemistry, 22.06.2019 09:40, kolibeilfuss
Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.
Answers: 3
If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but y...
History, 20.08.2020 14:01