Light reflects off of the medium at a angle to which it initially struck the material. This means that if light hits a mirror at a 40-degree angle, it will bounce off at a degree angle. Draw a picture of what this looks like. (FILL IN THE BLANK)

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

Why is the bottom layer of a trophic pyrimid the