Name the piece of equipment shown above:

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?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

‘which reaction would most likely require the use of an inert electrode?