What does this chemical reaction describe?

water > hydrogen > oxygen

A.) respiration

B.) decomposition of water

C.) combustion of hydrogen fuel

D.) chemical reaction in a battery

Which planet has a dense carbon dioxide atmosphere and high surface temperatures?

Which of the following would be a good question that could be scientifically investigated? A. What is the correct way to pursue happiness in life? B. Can play the piano at a shower tempo improve the sound quality? C.

Your friend claims that weather predictions are just guesses. What would you say to change your friend's mind?

Are microbe multicellular

What is physics, give defination

Do different volumes of water have the same density? Why or why not?

Suppose you increase your walking speed from 4 m/s to 12 m/s in a period of 1 s. What is your acceleration?

If a wave is traveling at a constant speed, and the frequency decreases, what would happen to the wavelength? A) It would increase B) It would decrease C) It would remain constant D) It would drop to zero

What conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space?

A car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. Calculate the average speed.