As you view the graphics, the idea is to develop the concept of polarity in a visual manner. The more areas of red and blue that you see, the more polar is the compound and the functional group in the compound. Look at the amide, and acid. The more areas of gray and lighter shades of red and blue, the more non-polar properties are being depicted. Look at the amine, ether, and alkane.
Making the world better, one answer at a time. Advantages-Good quality and it gets rid of asthma. Disadvantages-Its very expensive and your killing silk worms just to get a single silk thread.ransporting silk by sea instead of sending it west on the Silk Road was faster and cheaper. No tolls to pay or bandits to worry about. There was some danger from pirates and â¦ storms, but nothing is perfect. After China was opened to foreign trade, ships were obviously a more economical means of transporting silk.
Cleaning Silk Upholstery. Silk is a lustrous fiber with high strength and good elasticity. It tends to shed dirt and resist wrinkles. Silk dyes and prints well and is usually found in bright rich colors. It is absorbent but dries quickly. Silk becomes weaker when wet and is easily yellowed and damaged by age, sunlight, and perspiration. Silk yellows if exposed to high temperatures and strong soaps. It is also harmed by alkalis and oxidizing agents (bleaches). Silk fabrics also tend to waterspot if wet cleaned incorrectly. Some brightly colored dyes used on silk are prone to bleeding. Insects can attack silk. In some constructions, silk fabrics have low abrasion resistance. The following tech help is on dry cleaning silk upholstery. Testing for bleeding still needs to be done with dry cleaning chemicals. To avoid damage, keep temperatures below 330Â°F.