Calculate the number of molecules in 0.5 moles of Sodium sulfate (Na2SO4)? ??? molecules Na2SO4 (no rounding; make sure to include scientific notation when necessary)

Identify the electromagnets with poles that are reversed from the electromagnet shown above

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

What are the two major rules associated with polarity