properties and changes of properties in matter

1) K 2 Cr 2 O 7 is soluble in not water. 2) It is in the form of orange crystals. 3) On heating potassium dichromate decomposes and forms potassium chromate and chromic oxide...

1) AgCl is obtained as a white precipitate 2) AgCl is insoluble in water. 3) It is soluble in aqueous ammonia..

Carbon fibers have high strength to weight ratio and are resistant to corrosio..

Terylene forms strong fibers. It is crease resistant, has high moisture absorption and has a high tensile strengt..

It is a white powder. When mixed with water (1/3 of its mass), it evolves heat and quickly sets to a hard porous mass within 5 to 15 minutes. During setting, a slight expansion (about 1%) in volume occurs so that it fills the mould completely and takes a sharp impression. The process of setting oc..

Sodium hydrogen carbonate is a white crystalline solid having a density of about 2.2 g/mL It has alkaline taste and is sparingly soluble in water. The solubility of sodium hydrogen carbonate increases with the rise of temperatur..

Taste Acids are generally sour in taste. Change of colours with indicators Indicators are substances that undergo a change of colour with a change of acidic, neutral or basic medium. Acids change the colour of indicators as given in t..

Ceramics are: Lighter, stiffer and corrosion resistant. They are brittle because of strong directional bonds. So they shatter rather than deform. The electrons in ceramics are tightly held because of covalent bonds. There are no mobile electrons to conduct current. Therefore ceramics are good..

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..

Kinetic Theory of Matter - 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 d..