What is the mass of one mole of product? (Remember the law of conservation of mass)
17
15.5
10
8.5

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 are isotopes of the same chemical element alike? how are they different?

What is the work done by the electric force to move a 1 c charge from a to b?