IF CORRECT ILL GIVE BRAINLIEST My favorite student mixes a white solid and a clear liquid together. Which observations are evidence that a chemical reaction has occurred?

A. The mixture begins to bubble and fizz
B. The solid disappears into the liquid
C. The mixture begins to smoke
D. The mixture becomes orange

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

)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.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.