Who invented the process of removing bacteria cells from food and liquids such as milk, cheese, and juice?
a. louis pasteur
b. marie curie
c. ivan pavlov
d. thomas edison

What is the mass of 8 moles of sodium atoms

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity