You have one of pure elemental metals (made of identical atoms; e. g. Ni, Cr, Pt, Al, Cu, Ta, Na, etc.). It has a Cubic (a=b=c, α=β=γ=90o ) crystal system. From the accompanying XRD data (taken with Cu K-α radiation λ = 1.5418Å),

a. Determine the crystal structure (i. e., choose from Simple Cubic, Base-centered Cubic, Body-centered Cubic, Face-centered Cubic, etc.) of the material.
b. Index each peak (i. e., assign hkl on each peak).
c. Calculate the lattice parameter, a. 2θ: 43.16, 50.30, 73.99, 89.85, 95.03, 116.92, 136.59

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.