Question

step 1 look at the formula of the molecular compound: co₂. use the periodic table to name the first element. c = carbon step 2 choose the correct prefix for the number of atoms of the element. carbon there is only one atom of carbon, so the correct prefix is \mono.\ but \mono\ is not included for the first element. step 3 use the periodic table to name the second element. o = oxygen step 4 change the ending of the second element to \ide.\ oxygen → oxide step 5 choose the correct prefix for the number of atoms of the element. 2 = di → dioxide there are two atoms of oxygen, so the correct prefix is \di.\ step 6 combine the two parts of the name. carbon dioxide figure 2.12 follow these steps to write the name of a molecular compound from its chemical formula. carbon dioxide, co₂, is used as an example.

Explanation:

Step1: Identify first - element name

Using periodic table, first element C is carbon.

Step2: Determine first - element prefix

There is 1 carbon atom. Prefix "mono" is not used for first element.

Step3: Identify second - element name

Using periodic table, second element O is oxygen.

Step4: Modify second - element ending

Change oxygen to oxide.

Step5: Determine second - element prefix

There are 2 oxygen atoms, so prefix is "di".

Step6: Combine names

Combine to get carbon dioxide.

Answer:

carbon dioxide