properties and changes of properties in matter

1) It is soluble in hot water. 2) It is in the form of purple crystals. 3) On heating KMnO 4 decomposes to potassium manganate and oxygen...

It is colorless and is soluble in water. On heating AgNO 3 decomposes and forms silver, nitrogen dioxide and oxygen...

Some of the synthetic detergents with a branched hydrocarbon chain have very low biodegradability. They are resistant to bacterial attack and are not fully degraded in sewage treatment units. Therefore, they cause water pollution when they are discharged into a river or any other water body. Phosp..

It is a thermoplastic. It dissolves in suitable solvent and the solution on evaporation leaves a tough but non flexible fil..

Sodium carbonate is a white crystalline solid, which can exists as anhydrous salt (Na 2 CO 3 ), monohydrate salt (Na 2 CO 3 .H 2 O), heptahydrate salt (Na 2 CO 3 .7H 2 O) and decahydrate (Na 2 CO 3 .10H 2 O - washing soda). Sodium carbonate is readily soluble in water. On heating, the decahydrate ..

State variables and functions may posses either extensive or intensive properties. Extensive properties are those, whose values depend on the quantity of matter contained in any system or size of the system. Typical properties are mass, volume, area, energy,..

A compound cannot be separated into its constituents by mechanical or physical means. For example, if we bring a magnet near a sample of iron sulphide, the iron present in the iron sulphide cannot be separated . Properties of a compound differ entirely from those of its constituent e..

If the rows and columns of a determinant are inter-changed, the value remains unaltered. If any two rows (columns) of a determinant are identical, its value of the determinant is zero. If any two rows (columns) of a determinant are interchanged, the value of the determinant is (-1..

Classification of Matter - All around us are substances that are made of matter. Matter has mass and occupies some space. Different kinds of substances are made up of different matter. Matter can be thus classified in many ways. Two basic classifica..

This theory explains the physical properties of matter in terms of motion of its molecules. According to this theory, every substance (solid, liquid or gas) consists of a large number of minute particles called molecules . A molecule may be defined as the smallest particle of a ..