Which method would be best to separate a mixture of sand and stones? magnetism filtration screening separation by density

Type in the box below the balanced, chemical equation that describes the complete combustion reaction of starch (C18H30O15). To receive full credit, you must include the phases of all the reactants and products as well.

What is the mole ratio of Fe3O4 to Fe?

If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction? Check all that apply. a. All reactions that occur in one step are slow. b. The probability of an effective three-particle collision is low. c.

Which body parts are part of the axial region of the body? Check all that apply. head legs arms neck torso

How many moles of sulfur dioxide are in 2.26x10^33 sulfur dioxide molecules?

In calcium fluoride, what is the closets noble gas that each ion becomes?

Americium-241 is used in some smoke detectors. it is an alpha emitter with a half-life of 432 years. how long will it take in years for 45.0 % of an am-241 sample to decay?

What is the purpose of forming a scientific hypothesis? It starts a plan to test your idea It provides the answer to your investigation It allows you to prove your idea is correct

N2 + 3h2 2nh3 how many moles of hydrogen are needed to completely react with two moles of nitrogen?

While in Europe, if you drive 119 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 30.0 mi/gal? Assume that 1euro=1.26dollars.