When is spectroscopy used?

Score: 4.5/5 (56 votes) Spectroscopy is used in physical and analytical chemistry to detect, determine, or quantify the molecular and/or structural compo...

What color is nigrosin stain?

Score: 4.1/5 (33 votes) In staining dyes, nigrosin (CI 50415, Solvent black 5) is a mixture of black synthetic dyes made by heating a mixture of nitroben...

What is unsaponified soap?

Score: 4.4/5 (60 votes) Free or unsaponified fatty acids are minor components (1–8%) of the overall composition of natural soaps produced following sapon...

When did manton pit close?

Score: 4.9/5 (53 votes) The pit closed on 11 February 1994. Around 1,500 people worked at the pit when it closed. At the time of closure there were eight...

Is importance of biodiversity?

Score: 4.8/5 (70 votes) Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of pla...