What is the ratio of carbon, hydrogen, and oxygen in most carbohydrates? A.
1:1:1
B.
1:2:1
C.
1:2:3
D.
2:1:1
E.
2:2:1

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?

What is avogadro’s number, and why is it useful

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids