What is the function of spicules in sponges?
1). they draw food and oxygen into the body.
2). they filter and digest food.
3). they provide protection from predators.
4). they produce sperm and eggs.

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?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.