Question: In experiment your teacher has provided you with a sample of sandy, salty, ocean water and asked you to separate the components of the mixture. In no more than four sentences, state if the
sample is a homogeneous or heterogeneous mixture, with supporting evidence, and describe how you
would accomplish the task.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

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.

Which metals are called noble metals