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Number bases Most people count in tens. For instance, the place value of the digits in number 4956 in this system Thousands hundreds tens units ↓ ↓ ↓ ↓ 4 9 5 6 The place values are in powers of ten. It is called the base ten system. 4956 = 4 X […]
A. Structure: Nouns – Countable and Uncountable/Concrete and Abstract Countable nouns are nouns that can be counted (e.g. oranges). So how do we know whether or not a noun is countable or uncountable? A countable noun is a noun with both a singular and a plural form. Singular Form Plural Form car cars coin coins broom brooms
Elements and Symbols The atoms are particles of elements and are represented by chemical symbols. A chemical symbol is a sign and it is made up of a letter or two letters to represent the atom of the element. Chemical symbols of atom of elements are derived from the names of the elements. The following
Classwork Series and Exercises {Chemistry- SS1}: Elements and Symbols Read More »
Conversion from Other Bases to Base (10) Ten It is possible to use any number as a base in building a numeral system. The number of unit used in the system is always equal to the base. Decimal/Denary Base 10-Digits Quinary Decimal/DenaryBase 10-Digits QuinaryBase 5-Digits BinaryBase 2-Digits OctalBase 8-Digits HexadecimalBase 16-Digits 0 0 0 0
Additive Inverse If we add 0 (zero) to any number, the result is the same as the given number. For example, 3 + 0 = 3, 0 + 8 = 8 We say that 0 is the identity for addition. If the sum of two numbers is 0, we say that each number is the
Classwork Series and Exercises {Mathematics- JSS2}: Inverse and Identity Read More »
Introduction The tangent is one of the three basic trigonometric functions, the other two being sine and cosine. These functions are essential to the study of triangles and relate the angles of the triangle to its sides. The simplest definition of the tangent uses the ratios of the sides of a right triangle, and modern
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Newton’s First Law of Motion – Idea of Inertia States that object continues in its states of rest or uniform motion in a straight line unless an external force acts on it. It is a common experience that a body at rest will remain at rest. For example, a book at rest on top of
Classwork Series and Exercises {Physics- SS2}: Newton’s Laws of Motion Read More »
ALKYNES An alkyne is a molecule made up entirely of carbon and hydrogen where on or more carbon atoms are connected by triple bonds. The general formula for an alkyne is CnH2n-2 where n is the number of carbon atoms in the molecule. Alkynes are named by adding the the -yne suffix to the prefix
Classwork Series and Exercises {Chemistry- SS3}: The Alkynes Read More »
AMINES Amines are organic compounds that contain nitrogen and are basic. The general form of an amine is shown in Lewis form. The different kinds of amines Examples showing different ways to show condensed formula are: Amines fall into different classes depending on how many of the hydrogen atoms are replaced. Primary amines In primary
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Amino Acids Amino acids are organic compounds which contain both an amino group and a carboxyl group, that is, any of a group of organic molecules that consist of a basic amino group (−NH2), an acidic carboxyl group (−COOH). Each molecule contains a central carbon (C) atom, termed the α-carbon, to which both an amino
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