What factors determine the selection of methods of the separation of a mixture?

When approaching a separation problem, the first order of business is to identify what is different between the molecules (or ions) that you wish to separate. For example, if all of the molecules are hydrophobic but differ in the magnitude of their hydrophobicity, then a separation method based on hydrophobic interaction is a good choice. … Read more

What is the top five things that attracts girls?

The top five things that attracts girls   Be a good talker This doesn’t mean you need to talk a lot. It means that you need to talk smart. Your words are very powerful at attracting girls, more than physical appearance. Be mysterious The mystery is something that attracts everyone and it surely attracts girls … Read more

How likely is it that the concept of the ‘Goldilocks Zone’ will yield a habitable planet with a breathable atmosphere?

Our Sun is a very ‘quiet’ star. For its size, it doesn’t produce a lot of damaging radiation. The amount of UV light it puts out is NOW countered by our atmosphere as Oxygen has produced Ozone which absorbs a lot of UVc. This Oxygen was initially produced by cyanobacteria in early development of the … Read more

Differences between somatic cell and germ cell.

No Somatic cell Germ cell 1 Somatic cell takes part in the growth of the body. Germ cells take part in reproduction. 2 Somatic cells are divided by means of mitosis cell division. Germ cells are produced by means of meiosis cell division. 3  Somatic cells do not undergo fusion. Male and Female germ cell … Read more

What is a duvet cover?

Analogy: duvet is to duvet cover as pillow is to pillowcase. A duvet cover is a protective layer that slips over the duvet and has a closure. Because duvets and comforters can be expensive and difficult to clean, duvet covers are useful because they protect your comforter during use and are easily removed and easy … Read more

What is a clear alert?

The CLEAR alert assists law enforcement in locating and rescuing missing, kidnapped or abducted adults or adults who are in immediate danger of injury or death, as well as aid in locating any potential suspects.