Endothermic reactions are reactions that absorb energy from their surroundings. An example of an endothermic reaction is the dissolving of ammonium nitrate in water. Exothermic reactions are reactions that release energy to their surroundings. An example of an exothermic reaction is the combustion of propane gas.
When potassium permanganate and heat are placed in a test tube, the solution will react in a few ways. First, the heat will cause the potassium permanganate to break down into its component parts, which are oxygen and manganese dioxide. This reaction will release heat and cause the solution to bubble. Additionally, the manganese dioxide …
Flaring up a glowing incense stick – എരിയുന്ന ചന്ദനത്തിരിയുടെ ആളിക്കത്തൽ Read More »
Thermo chemical reactions are chemical reactions that involve changes in temperature. Examples of these reactions include combustion, oxidation, and neutralization. Thermo-chemical reactions involving HCl and magnesium involve the formation of magnesium chloride (MgCl2) from the combination of the two compounds. The reaction is represented as follows: Mg + 2HCl → MgCl2 + H2 The reaction …
Physical change is a change that alters a substance’s physical properties, such as its size, shape, or state, but does not alter its chemical composition. Examples of physical changes include boiling, melting, freezing, and shredding. Chemical change is a change that results in the formation of one or more new substances. Examples of chemical changes …
Physical change and chemical change – ഭൗതിക മാറ്റവും രാസ മാറ്റവും Read More »
Balanced chemical equations are equations that show the chemical reactants and products on either side of the equation in equal amounts. In other words, the number of atoms of each element must be equal on both sides of the equation. For example, the reaction of hydrogen and oxygen to form water can be written as: …
Balanced chemical equations – സമതുലിതമായ രാസ സമവാക്യങ്ങൾ Read More »
Reactants Reactants are the substances that take part in a chemical reaction. They are the starting materials that are changed into new products with the help of a catalyst. Reactants are also known as substrates. Example: In the reaction between hydrogen and oxygen to form water, the reactants are hydrogen and oxygen. Products Products in …
The chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs. For example, the chemical formula of water is H2O, meaning that it …
The Chemical formula of compound – സംയുക്തങ്ങളുടെ രാസസമവാക്യങ്ങൾ Read More »
Compound Molecules and Atoms examples Water (H2O) – Hydrogen and Oxygen Carbon dioxide (CO2) – Carbon and oxygen Methane (CH4) – Carbon and hydrogen Ammonia (NH3) – Nitrogen and hydrogen
Monoatomic atoms are atoms that exist on their own and are not bonded to any other atom. Examples of monoatomic elements include helium, neon, and argon. Polyatomic atoms are atoms that are bonded to each other. Unlike monoatomic atoms, polyatomic atoms typically consist of two or more atoms that are held together by chemical bonds. …
Monoatomic and Polyatomic – മോണോറ്റോമിക്, പോളിയാറ്റോമിക് Read More »
Atoms are represented by their element symbol, such as H for hydrogen, O for oxygen, etc. Molecules are represented using structural formulas, which indicate the type and number of atoms present in the molecule, as well as the bonds between them. For example, the molecular formula for water would be written as H2O, indicating there …