Gaseous hydrogen iodide is placed in a closed container at 425°c, where it partially decomposes to hydrogen and iodine: 2hi(g)⇌h₂(g)+i₂(g) at equilibrium it is found that [hi]= 3.51×10⁻³ m, [h₂]= 4.76×10⁻⁴ m, and [i₂]= 4.76×10⁻⁴ m.
what is the value of at this temperature? express the equilibrium constant to three significant digits.

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction