Calculate the homogeneous nucleation rate in liquid copper at undercoolings of 150, 175, and 200 K using the following data: L = 1.88 x 109 J/m⁻³ , Tm = 1356 K, γ_SL = 0.177 J/m⁻², f0 = 10¹¹ /s⁻¹, Co = 6 x 10²⁸ atoms/m³, k = 1.38 x 10⁻²³ J/K. Equation: N_hom = f0.Co. exp {(-16 π γSL³ Tm²/ 3 Lo² K T). (1/ΔT²)}

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge