Home Chemistry Substance


What is a Substance?

The substance is the solid, gaseous, liquid, or plasma form of matter having a definite chemical composition, properties, and structure. The different forms of substances are interchangeable in different states (solid, liquid, gas, plasma).

In this part of learning science, we can discuss different topics related to chemical substances formed by periodic table elements.

Starch formula, definition, use, and structure of amylose and amylopectin


What is Starch? Starch is a soft, white powder and tasteless carbohydrate reserved in plants. Various types of starches found in plants are the most...
Zinc sulfate formula ZnSO4 and ionic structure with side effects, benefits and uses of zinc sulfate supplement

Zinc Sulfate

What is Zinc Sulfate? Zinc sulfate (chemical formula ZnSO4) is an inorganic compound of zinc that is used as a dietary supplement for treating zinc...
Potassium hydroxide or caustic potash chemical formula and uses of KOH solution in food and making soap

Potassium Hydroxide

What is potassium hydroxide? Potassium hydroxide (formula KOH), also called caustic potash or lye is a chemical compound which uses mainly for making soft soap....
Heavy water or deuterium oxide chemical formula D2O and uses in chemistry

Heavy Water

What is Heavy Water? Heavy water or deuterium oxide (D2O) is a form of water that contains only deuterium isotopes rather than the common hydrogen...
Sodium hydroxide or caustic soda chemical formula NaOH, uses, production, properties, solution in chemistry

Sodium Hydroxide

What is sodium hydroxide? Sodium hydroxide (chemical formula NaOH), also called lye or caustic soda is a strong base that contains the sodium ion (Na+)...
Potassium chloride salt formula and formation in chemistry, uses and medication of KCl solution and food supplement

Potassium Chloride

What is potassium chloride? Potassium chloride (chemical formula KCl) is a metal salt of potassium and chlorine atom. It is a mineral supplement used mainly...
Sodium chloride salt chemical formula NaCl, crystal structure, pH of solution and uses

Sodium Chloride

What is sodium chloride? Sodium chloride (formula NaCl) is an essential inorganic salt which uses mainly to maintain blood pressure and balance our body fluids....
Chlorine dioxide chemical formula ClO2, structure, production, properties and uses for water treatment and disinfection

Chlorine Dioxide

What is chlorine dioxide? Chlorine dioxide (chemical formula ClO2) is a yellowish-green gas or disinfectant which uses mainly for the treatment or production of drinking...
Ethylenediaminetetraacetic acid (EDTA) chemical formula, structure, metal chelate, side effects and uses in chemistry

Ethylenediaminetetraacetic Acid (EDTA)

What is EDTA? Ethylenediaminetetraacetic acid (EDTA) is an amino polycarboxylic acid commonly used as a chelating or sequestering agent with the chemical formula 2. It...
Urea or carbamide formula CO(NH2)2, structure and uses in fertilizer, resins, urea containing skin cream and automobile industry


What is urea? Urea or carbamide is a very important nitrogenous product in protein metabolism and excreted about 30 g per day in the urine...