Question

need help with 39 and 40

Which of the following changes is most likely to decrease the reaction rate for the chemical reaction? 2CO(g) + O2(g) → 2CO2(g) removing some CO from the reaction mixture adding a catalyst to the reaction mixture adding twice as much O2 to the reaction mixture tripling the temperature of the reaction mixture Question 40 If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by a semipermeable membrane, during osmosis there is a net flow of sugar molecules from the 0.3M solution to the 0.5M solution water molecules from the 0.3M solution to the 0.5M solution sugar molecules from the 0.5M solution to the 0.3M solution water molecules from the 0.5M solution to the 0.3M solution