Describe how you could use Universal Indicator to find the pH of a lemon juice solution.
Draw a ring around a carboxylic acid functional group on the diagram.
State the name of one additional carboxylic acid.
Fill in the missing products in the word equation for this reaction.\n\ncitric acid + calcium carbonate $\rightarrow$ calcium citrate + [BLANK] + [BLANK]
Suggest a method for separating the excess calcium carbonate from the remaining solution.
Would you describe this reaction as exothermic or endothermic? Give a reason for your answer.
Fill in the missing parts of the chemical equation for the fermentation of glucose to produce ethanol.\n\n$\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow \ldots\text{C}_2\text{H}_5\text{OH} + \ldots\text{CO}_2$
State two conditions that fermentation requires.
Complete the table shown below and work out the relative molecular mass of glucose.