In a balanced chemical reaction, the total mass of the products always equals the a. molar mass of the reactants.
c. total mass of the reactants.
b. atomic mass of the reactants.
d. proportional masses of the reactants.

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.