Empirical formula and Molecular formula Empirical Formula The formula which shows the simplest whole number ratio of atoms of elements in a compound is called the empirical formula. Empirical Formula Example The actual formula for hydrogen peroxide is H2O2 which shows that there is one hydrogen atom for every oxygen atom. Therefore the simplest ratio …
Define Empirical Formula and Molecular Formula with Examples Read More »
Formula Unit, Ion, Molecular ion and Free Radical Write a note on the following 1. Formula Unit 2. Ion 3. Molecular ion 4. Free Radical FORMULA UNIT The smallest repeating unit of an ionic compound which shows the simplest ratio between its ions is called the formula unit. EXAMPLE The simplest ratio between Mg and …
Formula Unit, Ion , Molecular ion and Free Radical Read More »
Relative atomic mass, Atomic mass unit and Average atomic mass Q. Write a note on the following Relative atomic mass Atomic mass unit Average atomic mass ANSWER RELATIVE ATOMIC MASS The mass of one atom of an element is compared with one-twelfth [1/12] the mass of one atom of carbon-12. Explanation The mass of one atom …
Relative atomic mass, Atomic mass unit and Average atomic mass Read More »
Define element, compound and mixture with examples. Element An element is a pure substance that cannot be broken down into smaller substances. Each element’s atoms include the same atoms, which have identical structural and chemical properties. There are 118 naturally occurring elements, of which 92 are found in nature and the remainder are created in …
Define element compound and mixture with examples Read More »
Fundamentals of Chemistry Important question answers Chemistry Class 9 Chapter 1 pdf Free Download **************************** **************************** ************************* Fundamentals of Chemistry Tutorials ************************* Related Chemistry pdf‘s 9th Class Chemistry Notes 10th Class Chemistry pdf Notes 11th Class Chemistry Chapterwise Free pdf Notes 12th Class Chemistry Free Downloadable 100% Original Cosmetics & Skin Care Products
Fundamentals of Chemistry pdf Notes Class 9 Chemistry Chapter 1 Learning Objective Chemistry Introduction Branches of Chemistry ->Physical Chemistry->Organic Chemistry->Inorganic Chemistry->Biochemistry->Industrial Chemistry->Nuclear Chemistry->Environmental Chemistry->Analytical Chemistry Basic Definitions Elements, Compounds and Mixtures Atomic Number, Mass Number Relative Atomic Mass and Atomic Mass Unit Empirical Formula, Molecular Formula Molecular Mass and Formula Mass Chemical Species Ions (Cations, …
Fundamentals of Chemistry Chapter 1 pdf Notes, mcqs , Video Lectures Read More »
Fundamentals of Chemistry Notes 2023 What exactly is science? Science is the systematic body of knowledge gathered via observations and experimentation. Explanation Our five senses acquire information about the material cosmos, which forms knowledge. When the authenticity and veracity of facts are proved through experiments, however, this is referred to as science. Example: Water freezes …
Fundamentals of Chemistry Notes 2023 Read More »
Chemistry Class 9 Chapter 1 mcqs Federal Board Fundamentals of Chemistry Important MCQs FBISE 9th Class MCQs 1. There are———–known elements. A. 101 B. 109 C. 118 D. 126 ANSWER.C 2. Atoms or groups of atoms with unpaired electrons are known ……….. A.compounds B.mixture C.molecules D.free radicals ANSWER.D Continue Reading Free radicals 3. A gas contains ————-molecules …
Chemistry Class 9 Chapter 1 Important MCQs Federal Board Read More »
Do you know! You can easily find excess and limiting reactants Firstly, you must know that !! What is Limiting reactant and excess reactant? Limiting Reactant Definition: The reactant which is used up completely and earlier in a chemical reaction is called a limiting reactant. Limiting reactant is also known as limiting reagent . Excess …
How to find Excess and Limiting reactants |Reagents | Chemistry Read More »
