Valence electrons are the electrons that present in the outermost shell of an atom. The electron configuration of Iron is written by knowing its... View Article
The left-hand side as sin3θ=sin(θ+2θ) now expand the right side of this equation using Addition formula sin(A±B)= sinAcosB ± cosAsinB... View Article
In the log table, it contains numbers like 6484 and 6493 respectively in the columns of 5 and 6 445.66 is about 2/3 of the way between 445 and... View Article
Tautomerism and metamerism comes under structural isomerism. Structural isomerism is a form of isomerism in which molecules have the same... View Article
The distance between Earth and the sun is approximately 150 million kilometres. The distance is referred to as one astronomical unit-the... View Article
Newton's third law- Every action there is equal to an opposite reaction. Whenever two bodies interact with each other, the force exerted by the... View Article
A binomial expression is an expression containing two terms joined by either addition or subtraction sign. For instance, (x + y) and (2 – x) are... View Article
Sulphur is a multivalent non-metal, abundant, tasteless and odourless. Mainly the element occurs as the pure element or as sulfide and sulfate... View Article
Answer: The representation of a chemical reaction in the form of symbols (substances) is known as a chemical equation. A chemical equation... View Article
A strong nucleophile is also a strong base. All nucleophiles are Bronsted bases — they donate a pair of electrons to form a bond to another... View Article
Trigonal bipyramidal (sp3d) is the shape of SF4 with one equatorial position occupied by 1 lone pair. It has a see-saw shape as it contains four... View Article
Molarity (M) is defined as the number of moles of solute per litre of solution. Molarity = moles of solute / litres of solution For example:... View Article
The skeleton which gives a perfect structure to our body is made up of bones. The bone helps in movement and protect our organs as well. The bone... View Article
The electronic configuration of an element is the arrangement of its electrons in its atomic orbitals. The atomic number of Nitrogen is 7... View Article
The empirical formula is the simplest possible formula for a compound. The molecular formula of CH 3 COOH can be written as C2H4O2 . The ratios... View Article
cos 4 x−sin 4 x = (cos 2 x+sin 2 x)(cos 2 x−sin 2 x)=cos(2x) From the Pythagorean identity we know that cos 2 x+sin 2 x=1 so we can write cos... View Article
A kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). 1 Kilogram is equal to 1000 Grams.1 kg = 1000 g For... View Article
