Why are scientist surprised to find coal in artic

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?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned