The number of electrons for the Ca atom is 20. Therefore the Calcium electron configuration will be 1s22s22p63s23p64s2. The first two electrons... View Article
Calcium carbonate CaCO3 is the main component in chalk. In water the solubility of calcium carbonate is extremely low therefore an extremely... View Article
Dacron is copolymer prepared by condensation of methyl ester of terphthalic acid with ethylene glycol. The monomer of Dacron are: Terphthalic... View Article
Calcium carbide react with water to produce calcium hydroxide and acetylene. The balanced equation is CaC2 + 2H2O → Ca(OH)2+C2H2 Calcium... View Article
Answer: A precipitation reaction is a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the... View Article
Let the oxidation state of sulphur is x. 2 + 4x - 12 = 0 4x = +10 x = 10/4 = 2.5 Therefore, the oxidation number of sulphur in Na2S4O6 is 2.5... View Article
Wurtz reaction is the reaction in which the form of coupling reaction where two lower alkyl halides are reacted in the presence of a dry ether... View Article
Answer: Formula unit mass is defined as the sum of the atomic masses of all atoms that are present in a formula unit of the given compound.... View Article
Soaps are sodium or potassium salts of higher fatty acids. Fatty acids are carboxylic acids containing 12 or more carbon atoms, Detergents are... View Article
Answer: Sucrose is the sugar which is known as table sugar. Sucrose is found in all photosynthetic plants. It is commercially obtained from... View Article
When the elevator is going upwards with acceleration a then net acceleration will be the sum of a and g(acceleration due to gravity). =g+a... View Article
Smoke is a collection of airborne solid particulates dispersed in the gas which is a dispersion medium. Smoke particles are an aerosol or mist of... View Article
Acetone is used as the solvent to manufacture plastics and other industrial products. ver contains aceton as a major content. Acetone is a clear,... View Article
Physisorption is non-specific in nature. It involves Waal interaction between adsorbate and adsorbent. Chemisorption is highly specific in nature... View Article
Answer: (b)Â CaOCl2 Calcium hydroxide, also known as slaked lime with the chemical formula Ca(OH)2 is a source of hydroxide ions when dissolved... View Article
Soft metals are those which can be cut and easy to dent, work, or cut without shattering, malleable.Sodium metal is soft enough to be cut with a... View Article
Answer: A mole is defined as the amount of a substance that contains exactly 6.02214076 X1023 elementary entities of the given substance. A mole... View Article
Answer: (a) Minerals. Gold, petroleum and coal are examples of Minerals. A mineral is a naturally occurring inorganic solid with definite... View Article
