What are the conditions needed for hydrogen to react with iodine

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

How does a large body of water, such as the ocean, influence climate?

Air can be considered a mixture. which statement does not explain why?