Match these items.
1. ethanol and benzoic acid
butanyl butyrate
2. benzyl alcohol and acetic acid
isopropyl formate
ethyl benzoate
3. butyric acid and butanol
4. n-pentanol and propanoic acid
5. isopropyl alcohol and formic acid
benzyl acetate
pentanyl propanoate

Here's what I get  

Explanation:

There are two methods of naming esters.

(a) Common names

alkyl alcohol + carboxylic acid ⟶ alkyl carboxylate

To form the name of an ester, you drop the alcohol and -ic acid ending from the names of the reactants.

The name of the ester consists of two words: the name of the alcohol followed by the acid name with the ending -ate.

(b) IUPAC (systematic) names

alkanol + alkanoic acid ⟶ alkyl alkanoate

To form the name of an ester, you drop the -anol and -ic acid endings from the names of the reactants.

The name of the ester consists of two words with the corresponding endings -yl and -ate.

You don't mix the common and IUPAC systems in the same name.

1. ethanol + benzoic acid ⟶ ethyl benzoate

2. benzyl alcohol + acetic acid ⟶ benzyl acetate

3. butanol + butanoic acid ⟶ butyl butanoate (IUPAC)

   butyl alcohol + butyric acid ⟶ butyl butyrate (common)

4. pentanol + propanoic acid ⟶ pentyl propanoate (IUPAC)

    n-pentyl alcohol + propionic acid ⟶ n-pentyl propionate (common)

5. isopropyl alcohol + formic acid ⟶ isopropyl formate

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.