For the decomposition reaction given below: CaCO3 ( CaO(s) + CO2 (g) Assuming that the initial concentration of CaCO3 is 0.50M and its final concentration after 50minutes of reaction is 0.15M, determine the rate constant and half life for the first order process.
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The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.