By the end of this lab, you will see how some
materials diffuse through a semipermeable
membrane but others do not. the materials that
you examine will differ in molecule size. some will
be larger and some smaller. formulate an
investigative question for this situation.

One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g

Iwill give extra points to who gets this right

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry