This happens because of corrosion of copper , as the copper is exposed to air it reacts slowly with water from the moisture present in air, carbondioxide and oxygen. And the product formed is a mixture of copper hydroxide and copper carbonate as shown below.
Ald + ol Ald- Aldehyde ; ol – Alcohol. As the name suggests , this is a type of reaction which involve the formation of such a molecule which have “alcohol and aldehyde” functional groups.
Actually normality depends upon a simple formula that is :- Normality = Number of Gram equivalents / litre The term gram equivalents change as the valency of a substance changes . all the elements do not have same valence and hence it varies from element to element or molecule to molecule. And the term gram
We come across the various kind of mixtures in our daily life that have different kind of components and sometimes we have to separate the components for our benefit and there comes the need of separation in our day to day life. we do separation by using different kind of separating techniques. some techniques Are
Introduction ELECTRICITY: This term came from the Greek word ELEKTRON which means Amber. So the story begins from the year 600BC, Thales Of Miletus(a Greek philosopher) observed the attraction of amber towards fiber and other small particles when rubbed vigorously. Later around 1600 AD. William Gilbert also found that other substances besides amber ,
it is a very common question and common example too. i would love to answer. Most people say it is the bond formed due to the transfer of electrons, but this explanstion is not complete. Ionic bond is the bond formed due to strong electrostatic forces of attraction between two oppositely charged ions. here is