Question

Write the chemical name of the following and also give their molecular formulae:
(a) Baking soda
(b) Vinegar
(c) Marble
(d) Sand

Answer 1

Hint: We know that the above given compounds are those substances which are used in our daily lives and these are their common name. Each of these substances has a chemical name and chemical formula to represent it with during the chemical reactions. So here we have to tell the chemical name of each of the given substances along with their chemical formula.

Complete answer:
Let us discuss about each of the given substance and write their chemical name along with the chemical formula as follows:-
(a) Baking soda: It is also known as bicarbonate of soda and it is a salt composed of a sodium cation and a bicarbonate anion. It is a white crystalline solid but we use it generally in powdered form. The chemical name of baking soda is Sodium bicarbonate and its chemical formula is: $NaHC{{O}_{3}}$.
(b) Vinegar: It is an aqueous solution of acetic acid and other trace compounds which can include flavorings. So we can say that the chemical formula of vinegar is Acetic acid and since it is the second simplest carboxylic acid, so its chemical formula is: $C{{H}_{3}}COOH$.
(c) Marble: It is a metamorphic rock composed of recrystallized carbonate minerals among which the most common is calcite. These are mostly used in buildings and sculptures. The chemical name of marble is Calcium carbonate and its chemical formula is $CaC{{O}_{3}}$.
(d) Sand: It is also known as silica sand or quartz sand and is generally made up of two components which are silicon and oxygen. It is chemically inert and a hard mineral. Its chemical name is Silicon dioxide and the chemical formula is $Si{{O}_{2}}$.

Note:
-Remember to study and learn about the compounds and substances that are commonly used and also some famous compounds mentioned in chemistry so as to solve these types of questions easily.
-Also chemical formula can easily be learned by understanding the composition of the given substance.