Physics Wallah

List of Chemistry Formulas Important Concepts and Terms

A chemical formula is a way through which scientists represent the chemical proportions such as the number of atoms present in a molecule or a chemical compound. Chemical formula is done with the help of chemical elements, their symbols, and the numerical subscripts
authorImageSawat Sayyed7 Sept, 2023
Share

Share

Chemistry Formulas

The branch of science dealing with the chemical and physical properties of substances in a manner that further results in the formation of new substances is known as Chemistry. In the history of mankind, all elements have received a specific name derived from chemistry studies. The formulas of chemistry are known as chemical formulas.

A chemical formula is a way through which scientists represent the chemical proportions such as the number of atoms present in a molecule or a chemical compound. It is done with the help of chemical elements, their symbols, and the numerical subscripts. Chemistry formula tables can help you understand chemistry formulas.

Chemical Formulas or Chemistry Formulas Types

Chemical Formula can be divided into 3 types
  • Molecular Formula
  • Empirical Formula
  • Structural Formula
Molecular Formula : In a molecule, we can find out the exact number of atoms of each element present by using a molecular formula, also known as a true formula. A molecular formula also tells us the type of atom present in the molecule of a compound. The numerical subscripts after the chemical symbols indicate the number of atoms. Here is an example of a molecular formula. Molecular Formula of glucose: C₆H₁₂O₆ In a glucose molecule, it represents the number of atoms of each constituent (Carbon, Hydrogen, and Oxygen). Empirical Formula: In other words, empirical refers to something that can be observed and assessed. Therefore, empirical formulas usually derived from experimental data are defined as the simplest ratio of all atoms within a compound's elements. The following empirical formula can be extracted by simplifying glucose's molecular formula. Empirical formula of glucose: CH₂O C, H, and O represent the whole ratio of atoms present. Structural Formula It is important to have chemical formulas easily and compactly, but also to know how the atoms are arranged in those formulas. As a result of the structural formula, we can identify which atoms are bonded to one another and which are not. The structural formula of glucose illustrates how atoms are bonded.

How to Write Chemical Formulas?

A chemical formula can be written by using the names of the elements that make up a compound, along with some basic rules.
  1. Valency can be used to write chemical formulas for binary compounds composed of two different elements.
  2. Valency refers to the capacity of an element to combine with another element to form a compound.
  3. First, the valencies of the two elements should be determined. Then, the sums of the valencies of the two elements should be equal by specifying the common lowest multiple of the valencies.
When a metal and a non-metal are present in a formula, the metal should be placed first. For example, NaCl has a positive charge, and Cl has a negative charge. Let’s take an example of balance. Aluminium oxide: O = 2 (belongs to group VI) Al = 3 (belongs to group III) The lowest common multiple of the valencies is 6, O : 2 x 3 = 6 Al : 3x 2 = 6 The chemical formula of Aluminium oxide is Al₂O₃.

Steps to Write a Chemical Reaction

The balancing of chemical equations plays a major role in this process. Four rules are followed while writing a chemical equation. Let's review them below.
  1. The right number of reactants is written on the left side of the equation.
  2. Formulas for the products are written on the right side of the equation.
  3. Reactants and products are separated by arrows pointing towards the products. This arrow indicates "to produce".
  4. The plus sign indicates "reacts with" on the reactants side, and it means "and"  on the products side.
For example, hydrogen and chlorine will create HCl in a balanced chemical reaction. In the first step, the equation must be written regarding the formulas of both diatomic elements. H 2 + C l 2 → HCl The reactants contain two hydrogen atoms and one chlorine atom, and the products contain one hydrogen atom and one chlorine atom, which can now be fixed and balanced by introducing the coefficient 2. Let’s take an example of balanced Aluminium oxide: O = 2 (belongs to group VI) Al = 3 (belongs to group III) Lowest common multiple of the valencies is 6, O : 2 x 3 = 6 Al : 3x 2 = 6 The chemical formula of Aluminium oxide is Al₂O₃ H 2 + C l 2 → 2HCl Now both the sides are balanced having two hydrogen and chlorine atoms each. Some examples of chemical reactions are listed below: Photosynthesis: 6CO2 + 6H2O  → C6H12O6 + 6O2 + 6H2O Calcium carbonate formation: CaCl2 + Na2CO3 → CaCO3 + 2NaCl Iron rusting: 4Fe + 3O2 + 6H2O → 4Fe(OH)3. Combustion of hydrogen: 2H2(g) + O2(g) → 2H2O(l )

Chemical Formulas ( Molecular )

List of Chemical Compound Formulas Compounds are basically substances that constitute two elements or more in a definite percentage. With the help of chemical formulas, the atoms of the elements in a compound can be known. The list below shows some chemical compounds along with their chemical formulas.
Chemistry formulas list
Aluminium Acetate Formula Magnesium Chloride Formula
Aluminium Carbonate Formula Magnesium Iodide Formula
Aluminium Chloride Formula Magnesium Nitrate Formula
Aluminium Hydroxide Formula Magnesium Oxide Formula
Aluminium Nitrate Formula Magnesium Phosphate Formula
Aluminium Oxide Formula Magnesiu m Nitride Formula
Aluminium Sulfide Formula Magnesium Sulfate Formula
Aluminum Bromide Formula Magnesium Sulfide Formula
Aluminum Fluoride Formula Maltose Formula
Aluminum Formula Malic Acid Formula
Aluminum Iodide Formula Manganese Ii Chloride Formula
Aluminum Phosphate Formula Manganeseii Sulfate Formula
Amino Acid Formula Maleic Acid Formula
Ammonia Formula Mass Percent Formula
Ammonium Acetate Formula Mercury Ii Chloride Formula
Ammonium Bicarbonate Formula Mercury Ii Nitrate Formula
Ammonium Bromide Formula Mercury Ii Sulfate Formula
Ammonium Carbonate Formula Methane Formula
Ammonium Nitrate Formula Methyl Acetate Formula
Ammonium Hydroxide Formula Molar Mass Formula
Ammon ium Dichromate Formula Molar Volume Formula
Ammonium Iodide Formula Molarity Formula
Ammonium Nitrite Formula Mole Fraction Formula
Ammonium Phosphate Formula Molecular Speed Formula
Ammonium Sulfide Formula Molecular Weight Formula
Antimony V Chloride Formula Molybdic Acid Formula
Argon Gas Formula Molecular Formula
Arsenic Acid Formula Monosodium Glutamate Formula
Ascorbic Acid Formula Net Ionic Formula
Aspirin Formula Nickel Acetate Formula
Atomic Mass Formula Nickel Chloride Formula
Azelaic Acid Formula Nickel Nitrate Formula
Barium Bromide Formula Nickel Sulfate Formula
Barium Acetate Formula Nitrite Formula
Barium Fluoride Formula Number Of Moles Formula
Barium Chloride Formula Nitrogen Dioxide Formula
Barium Hydroxide Formula Octane Formula
Barium Iodide Formula Oxalate Formula
Barium Nitrate Formula Oxalic Acid Formula
Barium Phosphate Formula Oxygen Formula
Barium Sulfate Formula Ozone Formula
Barium Oxide Formula Partial Pressure Formula
Binding Energy Formula Partition Coefficient Formula
Bismuth Iii Chloride Formula Pentane Formula
Bleaching Powder Formula Percarbonic Acid Formula
Bond Order Formula Percent By Volume Formula
Bromic Acid Formula Percent By Weight Formula
Bromine Formula Percentage Yield Formula
Butan 1 Ol Formula Perchloric Acid Formula
Butane Formula Periodic Acid Formula
Butyric Acid Formula Ph Formula
Cadmium Nitrate Formula Phosphate Formula
Cadmium Sulfate Formula Photosynthesis Formula
Caffeine Chemical Formula Phthalic Acid Formula
Caffeine Formula Potasium Carbonate Formula
Calcium Acetate Formula Potassium Acetate Formula
Calcium Bromide Formula Potassium Bicarbonate Formula
Calcium Iodide Formula Potassium Bromate Formula
Calcium Chloride Formula Potassium Bromide Formula
Calcium Phosphate Formula Potassium Chlorate Formula
Carbon Disulfide Formula Potassium Chromate Formula
Camphor Formula Potassium Cyanide Formula
Carbon Monoxide Formula Potassium Dihydrogen Phosphate Formula
Carbonous Acid Formula Potassium Hexacyanoferrate II Formula
Carbonate Ion Formula Potassium Fluoride Formula
Charles Law Formula Potassium Hexacyanoferrate III Formula
Chlorate Formula Potassium Hydrogen Phosphate Formula
Chloric Acid Formula Potassium Iodate Formula
Chlorine Gas Formula Potassium Hypochlorite Formula
Chloroacetic Acid Formula Potassium Iodide Formula
Chloroauric Acid Formula Potassium Hydroxide Formula
Chlorous Acid Formula Potassium Nitrate Formula
Chromate Formula Potassium Oxide Formula
Cholesterol Formula Potassium Nitrite Formula
Chloroform Formula Potassium Permanganate Formula
Chloroplatinic Acid Formula Potassium Sulfate Formula
Chromium III Chloride Formula Potassium Sulfite Formula
Chromium III Sulfate Formula Potassium Thiocyanate Formula
Chromic Acid Formula Propan 2 Ol Formula
Chromium Vi Oxide Formula Propane Formula
Cinnamic Acid Formula Propionic Acid Formula
Cobalt Ii Nitrate Formula Pyridine Formula
Combined Gas Law Formula Pyrophosphoric Acid Formula
Condensed Structural Formula Pyrosulfuric Acid Formula
Copper Chemical Formula Radioactive Decay Formula
Cobalt Ii Sulfate Formula Rate Of Decay Formula
Copper I Chloride Formula Resorcinol Formula
Copper Ii Carbonate Formula Retention Factor Formula
Copper II Chloride Formula Rydberg Formula
Copper Sulfate Formula Selenic Acid Formula
Copper II Nitrate Formula Sensible Heat Formula
Cyanide Formula Selenous Acid Formula
Density Of Gas Formula Silicic Acid Formula
Degree Of Unsaturation Formula Silicon Dioxide Formula
Dilution Formula Silver Acetate Formula
Dimethylglyoxime Formula Silver Chloride Formula
Diffusion Formula Silver Phosphate Formula
Dinitrogen Monoxide Formula Silver Sulfate Formula
Dinitrogen Pentoxide Formula Sodium Acetate Formula
Dinitrogen Trioxide Formula Sodium Bromide Formula
Dichloroacetic Acid Formula Sodium Chlorate Formula
Empirical Formula Sodium Citrate Formula
Entropy Formula Sodium Chromate Formula
Enthalpy Formula Sodium Dichromate Formula
Ethane Formula Sodium Dihydrogen Phosphate Formula
Fluorine Gas Formula Sodium Cyanide Formula
Folic Acid Formula Sodium Fluoride Formula
Formic Acid Formula Sodium Formate Formula
Fumaric Acid Formula Sodium Hydrogen Carbonate Formula
Galactose Formula Sodium Hydrogen Phosphate Formula
Gas Pressure Formula Sodium Hypochlorite Formula
Gibbs Free Energy Formula Sodium Nitrate Formula
Gluconic Acid Formula Sodium Iodide Formula
Glutaric Acid Formula Sodium Nitride Formula
Grams To Moles Formula Sodium Hydrogen Tartrate Formula
Helium Gas Formula Sodium Nitrite Formula
Hexanoic Acid Formula Sodium Sulfide Formula
Hexane Formula Sodium Peroxide Formula
Hydrazine Formula Solubility Formula
Hydrobromic Acid Formula Sodium Thiosulfate Formula
Hydrochloric Acid Formula Activation Energy Formula
Hydrocyanic Acid Formula Acetonitrile Formula
Hydrofluoric Acid Formula Acetaldehyde Formula
Hydrogen Gas Formula Acetamide Formula
Hydrogen Formula Zinc Sulfide Formula
Hydroiodic Acid Formula Zinc Phosphate Formula
Hydrogen Sulfate Formula Zinc Sulfate Formula
Hydros ul furic Acid Formula Zinc Nitrate Formula
Hypobromous Acid Formula Zinc Iodide Formula
Hypochlorous Acid Formula Zinc Hydroxide Formula
Hyponitrous Acid Formula Zinc Chloride Formula
Hyposulfurous Acid Formula Zinc Carbonate Formula
Hypophosphoric Acid Formula Zinc Acetate Formula
Ideal Gas Law Formula Zinc Bromide Formula
Internal Energy Formula What Is The Formula Of Gold
Iodic Acid Formula What Is The Formula Of Carbon
Iodous Acid Formula What Is The Chemical Formula For Glucose
Ionic Compound Formula Vinegar Formula
Ionic Strength Formula Vapor Pressure Formula
Ionization Energy Formula Uric Acid Formula
Iron Ii Oxide Formula Urethane Formula
Iron III Chloride Formula Urea Formula
Iron III Hydroxide Formula Tris Formula
Iron Iii Nitrate Formula Tungstic Acid Formula
Iron Iii Oxide Formula Trichloroacetic Acid Formula
Iron III Sulfate Formula Titration Formula
Iron Oxide Formula Tin Iv Chloride Formula
Iron Sulfate Formula Thiourea Formula
Lactose Formula Tin Ii Chloride Formula
Lead Acetate Formula Thermodynamics Formulas
Lead Ii Chloride Formula Theoretical Yield Formula
Lead II Nitrate Formula Tfa Formula
Lead Ii Acetate Formula Tartaric Acid Formula
Lead Iodide Formula Sulphuric Acid Formula
Lead Iv Acetate Formula Sulfurous Acid Formula
Lead IV Oxide Formula Sulfur Trioxide Formula
Limiting Reactant Formula Sulfate Ion Formula
Lithium Bromide Formula Structural Formula
Lithium Chloride Formula Sugar Formula
Lithium Hydroxide Formula Strontium Sulfate Formula
Lithium Iodide Formula Strontium Nitrate Formula
Lithium Oxide Formula Strontium Chloride Formula
Magnesium Acetate Formula Stp Formula
Magnesium Bromide Formula Stoichiometry Formula
Magnesium Carbonate Formula Stearic Acid Formula
Magnesium Hydroxide Formula Specific Heat Capacity Formula

Chemistry Formulas FAQs

What is the chemical formula for water?

Water's chemical formula is H2O, meaning it consists of two hydrogen (H) atoms and one oxygen (O) atom bonded together.

What is the formula for carbon dioxide?

Carbon dioxide is represented by the chemical formula CO2, signifying one carbon (C) atom bonded to two oxygen (O) atoms.

How do you calculate the molar mass of a compound?

To calculate the molar mass of a compound, add up the atomic masses of all the elements in the compound. Use the periodic table to find the atomic masses.

What is the formula for the ideal gas law?

The ideal gas law is represented as PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

What is the formula for calculating pH?

The formula to calculate pH is pH = -log[H+], where [H+] represents the concentration of hydrogen ions in a solution.
Popup Close ImagePopup Open Image
Talk to a counsellorHave doubts? Our support team will be happy to assist you!
Popup Image
CTA Image
008448982616
Join 15 Million students on the app today!
Point IconLive & recorded classes available at ease
Point IconDashboard for progress tracking
Point IconMillions of practice questions at your fingertips
Download ButtonDownload Button
Banner Image
Banner Image
Free Learning Resources
Know about Physics Wallah
Physics Wallah is an Indian edtech platform that provides accessible & comprehensive learning experiences to students from Class 6th to postgraduate level. We also provide extensive NCERT solutions, sample paper, NEET, JEE Mains, BITSAT previous year papers & more such resources to students. Physics Wallah also caters to over 3.5 million registered students and over 78 lakh+ Youtube subscribers with 4.8 rating on its app.
We Stand Out because
We provide students with intensive courses with India’s qualified & experienced faculties & mentors. PW strives to make the learning experience comprehensive and accessible for students of all sections of society. We believe in empowering every single student who couldn't dream of a good career in engineering and medical field earlier.
Our Key Focus Areas
Physics Wallah's main focus is to make the learning experience as economical as possible for all students. With our affordable courses like Lakshya, Udaan and Arjuna and many others, we have been able to provide a platform for lakhs of aspirants. From providing Chemistry, Maths, Physics formula to giving e-books of eminent authors like RD Sharma, RS Aggarwal and Lakhmir Singh, PW focuses on every single student's need for preparation.
What Makes Us Different
Physics Wallah strives to develop a comprehensive pedagogical structure for students, where they get a state-of-the-art learning experience with study material and resources. Apart from catering students preparing for JEE Mains and NEET, PW also provides study material for each state board like Uttar Pradesh, Bihar, and others
Privacy Policy
Terms of use
Copyright © 2025 Physicswallah Limited All rights reserved.