The Electronic configuration of an element with an atomic number 12 is ______
The element which is having the atomic number 12 is Magnesium. K-shell = 2 L-shell = 8 M-shell = 2... View Article
The element which is having the atomic number 12 is Magnesium. K-shell = 2 L-shell = 8 M-shell = 2... View Article
Carbon monoxide gas released as a result of incomplete burning of fuels is a toxic gas. Incomplete combustion occurs when... View Article
In the electrolysis of acidulated water, oxygen gas is evolved at the anode. OH– being negatively charged, moves towards the... View Article
The chemical reactions which proceed with the evolution of heat energy are called as exothermic reactions. A + B +... View Article
Answer: White powder magnesium oxide (MgO) When magnesium ribbon is burnt in the air, it combines with oxygen to form... View Article
Paralysis of Muscles, Stiff Backs, High Pulse Rates are the symptoms of Polio What causes polio? Polio, or poliomyelitis, is... View Article
The ultraviolet rays that strike the Earth result in the depletion of the ozone layer. The three categories of UV... View Article
In a redox reaction, both an oxidation and a reduction must occur. The substance that loses electrons is called the... View Article
Answer: When ethyne is burnt in the air incomplete burning takes place and produce sooty flame due to the limited... View Article
The reaction between lead nitrate and potassium iodide is an example of a precipitation reaction. Lead nitrate reacts with Potassium... View Article
The substance has a fixed amount of stored energy, which is in the form of potential energy and is referred... View Article
Answer: The postulate of Dalton’s atomic theory resulting from the law of conservation of mass is ‘The relative number and kinds... View Article
Atomic number = Number of proton = Number of electron. So, the atomic number of the neutral element is 3.... View Article
Charles’s Law is about the relationship between temperature and volume in flexible containers Charles’s Law For a fixed mass of... View Article
The amplitude of S.H.M at resonance is infinite in the ideal case of zero damping. In an ideal environment where... View Article
When the temperature goes up, the pressure inside a rigid container will go up. What is the relation between pressure... View Article
Respiration in living things and burning are the important uses of oxygen gas. What is the importance of oxygen gas?... View Article
The temperature at which a liquid changes into its gaseous form is called the boiling point. What is the boiling... View Article
The calorimeter is commonly made up of Copper because the specific heat capacity of copper is low. Hence, it will absorb a... View Article
Locking chlorine monoxide and chlorine-free radicals are called scavenging. Explanation: The reactive species in the stratosphere layer locked up the... View Article