Which of the following fraction pairs are equivalent fractions 1/4 and and 1/2 1/4 and 3/4 1/4 in for 12 1/4 and 8/32?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Why does asexual reproduction result in offspring with identicle genetic variation

)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.