Answer: The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number of... View Article
Answer: Sulphur (S) is an element that can never be overlooked. In the periodic table, sulphur is found in group 16. It is non-metal and is... View Article
Answer: Nitrogen, Oxygen, and Argon are the most commonly found gases in the atmosphere. The composition of the earth’s atmosphere is as... View Article
Answer: Bromine is liquid at room temperature. At room temperature, bromine is the only non-metal that is a liquid and a diatomic molecule.... View Article
Answer: When concentrated hydrochloric acid(HCl) reacts with manganese dioxide, chlorine gas, manganese(II) chloride and water are liberated. So... View Article
Answer: (1)Â (CH3)2CHCH2CH2Br The structure of 1-bromo-3-methyl butane is (CH3)2CHCH2CH2Br. According to the Guidelines set by IUPAC, the... View Article
Answer: Over secretion of thyroxin leads to symptoms that include fast heartbeat, rapid breathing as well as a protrusion of the eyes and... View Article
Answer: Red light is more effective in photosynthesis because both the photosystems (PS I and PS II) absorb light of wavelengths in the red... View Article
Answer: Newton's second law of motion gives the quantitative measurement of force. Newton’s second law states that the acceleration of an... View Article
Answer: The oxidation number of oxygen in superoxides is -1/2 i.e. O-1/2. Oxidation number of an atom is defined as the charge that an atom... View Article
Answer: Sphygmomanometer is used for measuring blood pressure. A sphygmomanometer also known as a blood pressure metre, blood pressure gauge,... View Article
Answer: Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration... View Article
Answer: The period between the end of one heartbeat to the end of the next heartbeat is called a cardiac cycle. The cardiac cycle is formed of... View Article
Answer: Bond energy is a quantity that offers insight into the strength of a chemical bond. A weak electrostatic force of attraction exists... View Article
Answer: Avogadro's number is represented by the symbol NA. Avogadro's number is a proportion that relates molar mass on an atomic scale to... View Article
Answer: The reactions in which a single reactant is oxidized and reduced is known as Disproporionation reactions. The disproportionation... View Article
Number of molecules =Â 6.02Â X 1023 molecules 6.02Â X 1023 molecules equals 1 mole. Mass of CO2 No of moles = Given mass/molar mass The... View Article