Avogadro’s number helps in many numerical calculations. Here, we will discuss the important relationships in the mole concept. Avogadro’s number may be defined as the number of atoms present in one gram atom of the element. It is also equal to the number of molecules present in one gram molecule of the substance. 1 mole […]
What are the different laws of chemical combination ? We study the different aspects of chemical reactions in the various chemical combinations. Law of conservation of mass : Laws of chemical combination In all physical and chemical changes, total mass of the system remains constant. It means matter is neither created nor destroyed. Physical changes […]
Significant figures is the total number of digits in a number . Here, are some rules for finding the value of significant figures. Rules for determining significant figures in addition and subtraction Here is the rule of finding the result of addition and subtraction. It should have the same number of decimal places as the […]
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