Category: Science Wonders
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Laws of Chemical Combinations
3. Law of Multiple Proportions: The first two laws had been known before John Dalton proposed his Atomic theory, in which he explained them based on atomic scale of matter and described the third law as the law of multiple proportion. It states that when two elements (e.g A and B) combine to form more…
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Laws of Chemical Combinations
2. Law of Definite Proportion This law is used to describe the way elements combine during the formation of compounds. It states that a particular compound (regardless of its source) is always made of the same elements combined in the same proportion or ratio by mass. It is also known as the law of constant…
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Laws of Chemical Combinations
In nature, elements do not usually exist on their individual forms except in few cases. They usually combine with other elements. The combinations are summarised in what are known as the laws of chemical combinations. The Law of Conservation of Mass: It states that the total mass of a substance remains unchanged during chemical reaction.…
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ELEMENTS, MOLECULES, COMPOUNDS AND MIXTURES
Elements are made up of only one kind of atoms with unique properties which are different from those of other atoms. Hence, it is considered the simplest form of matter and a pure substance. For example, oxygen, hydrogen, and carbon are all elements with a unique name. Atoms that oxygen is made up of are…
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Hey, what is an atom?
An atom is the fundamental building block of Chemistry. It is smallest constituent unit of a matter that has the properties of a chemical element. How do scientists know that atoms exist? Earlier on (4th century), it was believed by some that there is no end to smallness. For instance, if you are to chop…
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