How many moles of Fe are needed to make 4 moles of FeCl2

How many molecules of CO2 will be produced by the decomposition of 24.9 mol of Ca (HCO3) 2 in the following reaction: Ca (HCO3) 2 = > CaO (s) + 2CO2 (g) + H2O (g).

6. Which of the following statements correctly describes what happens to the diaphragm during an inhalation, when the lungs inflate? O A. The diaphragm returns to its resting state. O B. The diaphragm contracts and flattens. O C.

Select all that apply. A chemist is likely to do which of the following? analyze the ingredients in ice cream determine why planets orbit the Sun determine how to separate gasoline from other substances in petroleum determine the force necessary to

What is the color of the mineral when it is in powdered form

What is the elephant toothpaste

What is true when a reaction has reached equilibrium? A. the reaction has stopped. B. the concentration of the products is changing. C. the concentration the products and reactants is constant. D. the concentration of the reactants is changing.

A thesis is closest in meaning to a (n) A. Implication B. Contention C. Statistic

Under a high-powered microscope, Dan sees a cellular organelle. The organelle has a double membrane, and the inner membrane is folded. The organelle contains its own DNA. Which organelle does Dan see?

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 22.5 mg.

When would maintaining high proteinase inhibitor concentrations in plant tissues be problematic?