Number base trick

Chemistry - Separation Techniques

A separation process or technique is a method that converts a mixture or solution of chemical substances into two or more distinct product mixtures. At least one of results of the separation is enriched in one or more of the source mixture’s constituents. In some cases, a separation may fully divide the mixture into pure constituents. Separations exploit differences in chemical properties or physical properties (such as size, shape, mass, density, or chemical affinity) between the constituents of a mixture. Processes and techniques are often classified according to the particular differences they use to achieve separation. If no single difference can be used to accomplish a desired separation, multiple operations can often be combined to achieve the desired end. With a few exceptions, elements or compounds exist in nature in an impure state. Often these raw materials must go through a separation before they can be put to productive use, making separation techniques essential for ...

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Physics - Scalers and Vectors

Introduction to Vectors and Scalars We come into contact with many physical quantities in the natural world on a daily basis. For example, things like time, mass, weight, force, and electric charge, are physical quantities with which we are all familiar. We know that time passes and physical objects have mass. Things have weight due to gravity. We exert forces when we open doors, walk along the street and kick balls. We experience electric charge directly through static shocks in winter and through using anything which runs on electricity. There are many physical quantities in nature, and we can divide them up into two broad groups called vectors and scalars. Scalars and Vectors Scalars are physical quantities which have only a number value or a size (magnitude). A scalar tells you how much of something there is. Definition: Scalar A scalar is a physical quantity that has only a magnitude (size). For example, a person buys a tub of margarine which is labelled with a mass of 500g....

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English - Grammatical Concord

Definition: Concord is the relationship between a subject and its verb, or between a number or determiner and its noun; e.g. I look/she looks… one bell/three bells. It is also called concord. Concord can also be seen as the relationship between words in gender, number, case, person, or any other grammatical category which affects the forms of the words. Concord, as it is also often referred to, mainly focuses on subject-verb agreement. This is subdivided into three categories: Grammatical concord Concord of proximity Notional concord "Some Rules for Grammatical Concord" The grand rule of subject-verb concord is that a singular subject takes a singular verb and a plural subject takes a plural verb. And it is needful to establish this fact that singular verbs are inflected with suffix ‘-s’ while plural verbs maintain the base form. In other words, a singular verb ends with an ‘s’ and a plural verb has no ‘s’. Verb Singular • Plural comes ...

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