Question

stearic acid
oleic acid
complete the table.
\tstearin\ttriolein
is likely liquid at room temperature\t○\t○
is a saturated fat\t○\t○
is likely solid at room temperature\t○\t○
is an unsaturated fat\t○\t○

Explanation:

1. For "is likely liquid at room temperature":

• Stearin is a triglyceride of stearic acid (saturated fatty acid). Saturated fats (like stearin) have closely packed molecules, so they are usually solid at room temperature.
• Triolein is a triglyceride of oleic acid (unsaturated fatty acid with a double bond). Unsaturated fats have kinked chains due to double bonds, which prevent close packing. So triolein is likely liquid at room temperature. So triolein gets a check here.

1. For "is a saturated fat":

• Stearin is made from stearic acid (saturated, no double bonds in the fatty acid chain). So stearin is a saturated fat.
• Triolein is made from oleic acid (unsaturated, has a double bond). So stearin gets a check here.

1. For "is likely solid at room temperature":

• Saturated fats (like stearin) have high melting points and are solid at room temperature. Unsaturated fats (like triolein) are liquid. So stearin gets a check here.

1. For "is an unsaturated fat":

• Triolein is made from oleic acid (unsaturated fatty acid). So triolein is an unsaturated fat and gets a check here.

Answer:

	stearin	triolein
is a saturated fat	$\boldsymbol{\checkmark}$
is likely solid at room temperature	$\boldsymbol{\checkmark}$
is an unsaturated fat		$\boldsymbol{\checkmark}$