Compound A is an aromatic compound with the molecular formula C8H8. When treated with excess Br2, compound A is converted into compound B, with the molecular formula C8H8Br2.

yes

ya te ayud espera

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.