Photosynthesis is how plants produce carbon compounds. Write the overall equation for photosynthesis and state the conditions needed for this process.
Starch is a polymer in plants, and it can be hydrolysed. Give the name of the substance formed when starch is hydrolysed.
State the reagent and the conditions required to hydrolyse starch.
Ethanoic acid reacts with calcium hydroxide to produce a salt and water. Give the name and formula of the salt formed.
One ester in the distillate has the molecular formula $\text{C}_4\text{H}_8\text{O}_2$. Draw the structure of an ester with this formula, showing all the atoms and all the bonds.
The distillate also contains a compound with the following composition. Carbon 37.5%, hydrogen 12.5%, oxygen 50.0%. Deduce the empirical formula of this compound.