What is the percentage of magnesium sulfate in MgSO4 x 7H2O.

A 4.00-gram sample of sodium chloride was added to a beaker containing 40.0 mL 0.033 M lead (II) nitrate solution. Lead (II) chloride was precipitated according to the following reaction.

Which of these is a physical change? A. Iron rusts B. Gas is burned C. Paper is shredded (Which I think it is but I wanna be sure) D. A shirt is bleached ...

Is the effect of adding bonded atoms and lone pairs to the central atom similar

Some fertilizer blends contain magnesium nitrate (MgNO3). Suppose that a chemist has 1.24 liters of a 2.13 M solution of magnesium nitrate. If the chemist dilutes the solution to 1.60 M, what is the volume of the new solution?

Which of the following is true? A. The least reactive element in group 2 is the one with the largest atomic radium and the least amount of attraction between the nucleus and the valence electrons. B.

Which of the following statements best describes the basic structure of an atom? Electrons and protons are in motion around a nucleus that contains neutrons Neutrons are in motion around a nucleus that contains protons and electrons Protons are in

Which of the following elements is released into the atmosphere by all of these processes: volcanic outgassing, animal respiration and flatulence, burning of fossil fuels, and metamorphism of limestone? a. Carbon. b. Nitrogen. c. Oxygen. d. Sulfur

A phase change from a solid to a gas is called what

What is the meaning of semipermeability?

What type of reaction does Fe+Ag2SO4-FeSO4+Ag