Solid iron (II) sulfide reacts with aqueous hydrochloric acid HCl to produce hydrogen sulfide gas H2S and aqueous iron (II) chloride.

In three different experiments, the following results were obtained for the reaction A - > products: [A]o = 1.00M, t1/2=50 min; [A]o = 2.00M, t1/2 = 25 min; [A]o = 0.50M, t1/2 = 100 min.

If the density of an unknown gas z is 4.50 g/l at stp what is the molar mass of gas z

The universe is made up of billions of galaxies, and each galaxy is made up of billions of stars. Is it possible to see any of these galaxies with the naked eye? A. Yes, some of the galaxies can be seen with the use of a microscope. B.

What tool does the US government use to keep track of inflation throughout the years? A. The Value Calculator B. The Consumer Price Index C. The Monetary Supply D. The Inflation Scale

What do the horizontal lines represent in periodic table?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?