Question

1. what does the pink part of the acid represent:

what does the yellow part of the acid represent:
what does the blue part of the acid represent:

1. this acid has a single - to - single carbon bonds is called unsaturated or saturated choose one.
2. this acid has one to several double bonds is called unsaturated or saturated choose one.

Explanation:

• For question 10:
• The pink part (\( -COOH \)) is the carboxyl group which is characteristic of fatty acids.
• The yellow part (long chain of \( -CH_2 - \) groups) is the hydrocarbon chain.
• The blue part (\( -CH_3 \)) is the methyl group.
• For question 11: A fatty acid with only single - to - single carbon bonds is saturated as all carbon atoms have the maximum number of hydrogen atoms attached (no double bonds to accept more hydrogen).
• For question 12: A fatty acid with one or more double bonds is unsaturated as the double bonds mean the carbon chain is not “saturated” with hydrogen atoms.

Answer:

10.

• Pink part: Carboxyl group.
• Yellow part: Hydrocarbon chain.
• Blue part: Methyl group.

1. Saturated.
2. Unsaturated.