The balanced equation for photosynthesis is shown below. 6 co2 + 6 h2o → c6h12o6 + 6 o2 what best explains whether mass is conserved or not during photosynthesis? it is not conserved because the total number of h atoms is 6 more than the total number of c atoms. it is not conserved because the total number of o atoms is 6 more than the total number of h atoms. it is conserved because the total number of h atoms on each side is 12. it is conserved because the total number of o atoms on each side is 2.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

)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.

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams