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What is E-commerce?

What is E-commerce? E-commerce (Electronic commerce or EC) is the buying and selling of goods and services or transmitting funds or data over an electronic network, primarily the internet. These business transactions occur either business to business, business to consumer, consumer to consumer, or consumer to business. This thesis is concerned with the impact of electronic commerce on international tax laws, specifically source-based taxation. Before looking specifically at the arguments and propositions to be advanced by the thesis, it is both instructive and necessary, to begin with, a discussion of what is meant by ‘electronic commerce’. Discussions relating to electronic commerce normally begin with a pronouncement that it represents a fundamental and revolutionary development in communications that is likely to dramatically change the way business is conducted. This is usually followed by highly variable, speculative, and often mind-numbing estimates of the expected growth of th

Mineral Resources: Fossils

  Chemistry Chapter - 11: Mineral Resources: Fossils 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Chemistry in Our Lives

  Chemistry Chapter - 12: Chemistry in Our Lives 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Mineral Resources: Metal - Nonmetal

  Chemistry Chapter - 10: Mineral Resources: Metal and Nonmetal 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Acid-Base Balance

  Chemistry Chapter - 9: Acid-Base Balance 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Chemistry and Energy

  Chemistry Chapter - 8: Chemistry and Energy 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Concept of Mole and Chemical Counting

  Chemistry Chapter - 6: Concept of Chemical Counting 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Chemical Reactions

  Chemistry Chapter - 7: Chemical Reactions 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Chemical Bond

  Chemistry Chapter - 5: Chemical Bond 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Structure of Matter

  Chemistry Chapter - 3: Structure of Matter 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Periodic Table

  Chemistry Chapter - 4: Periodic Table 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

States of Matter

  Chemistry Chapter - 2: States of Matter 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 : Concept of Chemistry Chapter - 2 : States of Matter Chapter - 3 : Structure of Matter Chapter - 4 : Periodic Table Chapter - 5 : Chemical Bond Chapter - 6 : Concept of Mole and Chemical Counting Chapter - 7 : Chemical Reactions Chapter - 8 : Chemistry and Energy Chapter - 9 : Acid-Base Balance Chapter - 10 : Mineral Resources: Metal - Nonmetal Chapter - 11 : Mineral Resources: Fossils Chapter - 12 : Chemistry in Our Lives

Concept of Chemistry

  Chemistry Chapter - 1: Concept of Chemistry 👉   All Chapter Contents   👈   1.1 Chemistry Question Bank 1.1  Chemistry Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

Physical change

Physical change All chemical substances consist of one or more elements. Sometimes, changes occur only in the physical conditions of a substance leaving its chemical structure unchanged. This is called a physical change. Physical change examples A solid piece of ice, if kept at room temperature, absorbs heat from the environment and gradually melts into liquid water. Again, heating liquid water up to 100°C will see the water vaporize into the air. Here, all the molecular formulas of all three - water, ice, and vapor are the same - H 2 O.  That means each molecule of them has the same two hydrogen and one oxygen atoms in them. Therefore, all three substances are the same, only their physical states are different - ice solid while water is liquid and vapor is gaseous. This kind of change is called a physical change. You May Like What is zoom? Affect vs Effect What do you understand by phosphorylation? What do you understand by anaerobic respiration? What is fein? What is FEIN? What i

What do you mean by alloy?

What do you mean by alloy? An alloy is a substance made by melting two or more elements together, at least one of them a metal. An alloy crystallizes upon cooling into a solid solution, mixture, on an intermetallic compound. The components of alloys can not be separated using physical means. An alloy is homogeneous and retains the properties of a metal, even though it may include metalloids on non-metals in its composition. Such as stainless steel, brass, bronze, white gold, etc. You May Like What is a generator?  What is the function of a generator? What do you mean by alloy? Explain the importance of recycling metal? What is galvanizing?

Explain the importance of recycling metal?

Explain the importance of recycling metal? The number of molecules of every element in the world is defined. It is not possible to produce fundamental elements. So every mineral is not infinite, they are finite. The resource of the metal will be finished within 120 - 150 years if we use the metal at the present rate. So if we extract the metal in a limited amount we can get it for many years. Besides this, recycling metal is important in solving environmental problems. It will save both money and fuel. You May Like What is a generator?  What is the function of a generator? What do you mean by alloy? Explain the importance of recycling metal? What is galvanizing?

What is galvanizing?

What is galvanizing? The method of laying zinc coating on any metal is called galvanizing. It does not require electrolysis. Zinc is coated on anyway on any metal. You May Like What is a generator?  What is the function of a generator? What do you mean by alloy? Explain the importance of recycling metal? What is galvanizing?

Liquids which are miscible

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If miscible liquids are to be separated, then this can be done by fractional distillation. The apparatus used for this process is shown in the photo and diagram in Figure, and could be used to separate a mixture of ethanol and water.  Fractional distillation relies upon the liquids having different boiling points. When ethanol and the water mixture is heated the vapours of ethanol and water boil off at different temperatures and can be condensed and collected separately.  Ethanol boils at 78 °C whereas water boils at 100 °C. When the mixture is heated the vapour produced is mainly ethanol with some steam. Because water has a higher boiling point of the two, it condenses out from the mixture with ethanol. This is what takes place in the fractionating column. The water condenses and drips back into the flask while the ethanol vapour moves up the column and into the condenser, where it condenses into liquid ethanol and is collected in the receiving flask as the distillate. When all the et

Liquids which are immiscible

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If two liquids are immiscible they can be separated using a separating funnel. The mixture is poured into the funnel and the layers allowed to separate.  The lower layer can then be run off by opening the tap as shown in Figure. You may also read Types of Computer Main components of computer systems Hardware and Software Liquids which are miscible Separating liquid mixtures Simple distillation 

Separating liquid/liquid mixtures

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In recent years there have been many oil tanker disasters, just like the one shown in Figure. These have resulted in millions of litres of oil being washed into the sea. Oil and water do not mix easily. They are said to be immiscible. When cleaning up disasters of this type, a range of chemicals can be added to the oil to make it more soluble. This results in oil and water mixing with each other. They are now said to be miscible. The following techniques can be used to separate mixtures of liquids. You may also read Types of Computer Main components of computer systems Hardware and Software Liquids which are miscible Liquids which are immiscible Simple distillation 

Simple distillation

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If we want to obtain the solvent from a solution, then the process of distillation can be carried out. The apparatus used in this process is shown in Figure. Water can be obtained from saltwater using this method. The solution is heated in the flask until it boils. The steam rises into the Liebig condenser, where it condenses back into the water. The salt is left behind in the flask. In hot and arid countries such as Saudi Arabia, this sort of technique is used on a much larger scale to obtain pure water for drinking. This process is carried out in a desalination plant. You may also read Types of Computer Main components of computer systems Hardware and Software Liquids which are miscible Liquids which are immiscible Separating liquid mixtures

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