What is the percent of nitrogen (N) by mass is a 55.0g sample of Fe (NO3) 3? The molar mass of Fe (NO3) 3 is 241.86g/mol.

One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 6.43 liters against a constant external pressure of 1.00 atm. how much work (in joules) is performed on the surroundings? ignore significant figures for this problem.

Elaborate on the difference between 8S and S8. A) 8S represents eight sulfur atoms and S8 represents one sulfur atom. B) 8S represents eight sulfur atoms and S8 represents one sulfur molecule.

A gas sample contained in cylinder equipped with a moveable piston occupied 300.0 mL at a pressure of 20.0 atm. what would be the final pressure if the volume were increased to 500.0 mL at constant temperature?

What do the energy resources uranium and coal have in common? A. they both are formed from the remains of dead organisms. B. they both generate radioactive wastes. C they both are acquired by mining the lithosphere.

29. Explain why Elements located in the Alkali group bond so readily and easily with the Halogens Group

Which of the following solutions contains the largest total concentration of ions, assuming complete dissociation .010 M aluminum chloride .010M sodium chloride .010M aluminum sulfate .010M calcium chloride

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction? a. In equilibrium, the forward reaction rate must be greater than the reverse reaction rate. b.

Choose all that apply: Living organisms use atoms from sugar molecules combined with other elements to form: Question 9 options: Lipids Metals Nonmetal atoms Nucleic Acids

12.5ml of 2.0m NaOH neutralizes 10ml og HCL, what is the acid concentration

Can you explan process of budding in yeasts?