Rooster Cogburn
Rooster Cogburn answered

Fehling's Test. In this test the presence of aldehydes but not ketones is detected by reduction of the deep blue solution of copper(II) to a red precipitate of insoluble copper oxide. The test is commonly used for reducing sugars but is known to be NOT specific for aldehydes.

Fehling's test for reducingRead more

PJ Stein
PJ Stein answered Anonymous' question

Different  people or groups can have differing opinions as to what is best. Unless they say top selling which is based on sales, the rest is all opinion and can vary. And even if they top selling they may quantify it. Sometimes with moves you will hear "America's number one comedy" when it is the … Read more

Jann Nikka
Jann Nikka answered asdjasd Xes' question

42%. Or

Ask your parents, math teacher, tutors and  student groups. Of course, your math book 📚has examples and you could practice and certainly figure out this answer.

Austin Jones
Austin Jones answered

    To understand the abundance of N in the atmosphere, it is useful to compare it to O (the next most abundant element in the atmosphere). Compared to O, N is 4 times as abundant in the atmosphere. However, we must also consider the relative abundances of O and N over the entire Earth … Read more

Farshid Khan
Farshid Khan answered

The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. The hot blast … Read more

Chloe Mica
Chloe Mica answered

High thermal and electrical conductivity.

Luster and high reflectivity.

Malleability and ductility. They can be beaten or shaped without fracture.

Variability of mechanical strengths (ranging from soft alkali metals to Tungsten, which is hard).

Reference: http://chemistry.tutorvista.com/physical-chemistry/metallic-bonding.html

How about Antennapedia Peptide? Can it be used as a reference?

John McCann
John McCann answered

One of the more interesting exercises in a chemistry teaching lab is showing the real manifestation of water's polarity.

Turn on a faucet and let a stream of water flow while putting a magnet next to the stream. Depending on the polarity one will see the stream attracted to or repeled by the magnet.