Answer: Some metal reacts with a base to form salts and hydrogen gas. Most metals do not react with bases but zinc metal does because it is... View Article
Crystallisation is a process that separates a pure solid in the form of its crystals from a solution. Crystallisation is better than evaporation... View Article
The acceleration from Newton's second law is equal to the final velocity divided by the time and the average velocity is half the final velocity,... View Article
If the reaction is zero-order, the rate constant has exactly the same units as the rate of the reaction mol L-1 s -1. If the reaction is first... View Article
Answer: Node is a point where the electron probability is zero. For a given orbital there are two types of nodes. Radial node Angular node... View Article
Both are different. Combining capacity of an element or a radical with another element or radical to form a compound or molecule is known as... View Article
Density is a measure of how compact the mass in a substance or object is. The density of an object or substance can be calculated from this... View Article
The kidney and urinary systems help the body to eliminate liquid waste called urea and to keep chemicals, such as potassium and sodium, and water... View Article
The dorsal surface of the mammalian tongue is covered with four kinds of papillae, fungiform, circumvallate, foliate and filiform papillae. With... View Article
The Golgi apparatus is a membrane-bound organelle found in most cells. It is responsible for packaging proteins into vesicles prior to secretion... View Article
Answer: The combustion of methane is a process that consists of a reaction between methane and oxygen in the air. When this reaction takes... View Article
Answer: Antibiotics are a type of antimicrobial medicine that works by suppressing the growth of bacteria and is used to treat and prevent... View Article
The existence of the neutron was proposed by Ernest Rutherford in 1920. It was discovered by James Chadwick in 1932, earning him the Nobel Prize... View Article
An isotope is any form of a chemical element that has the same number of protons in the nucleus, or the same atomic number, but has a different... View Article
Cork is the outer protective layer of bark of a tree. The cork cells are dead and compactly packed with no intercellular space. Their cell walls... View Article
Light is an electromagnetic wave. It has no physical substances for us to see. An opaque object is neither transparent (allowing all light to... View Article
The integers is a special set of numbers comprising zero, positive numbers and negative numbers. Examples of Integers: – 8, -34, 9, 78.... View Article
Concert halls are very big, so the sound might not reach every corner of the hall. So, ceilings of concert halls are made curved so that after... View Article
