1. the object of various things around us contains many additives. If to consider the substance, they found that the compound resembles meat substances which looked then see that there is more than one type of shared substance such as water, salt, pepper, dip the fruit in the Canal, etc. Calling this kind of compound that some kinds of meat mixed substance looked then like there are noticed only one type, such as syrup, salt water, powder, perfume, etc. Calling this kind of compound that the same substances. 2. criteria for the classification of substances into categories. There are several criteria, such as the status of the substance. The characteristics of the meat or the particle size of the substance, etc. The classification of substances, using different criteria, it will be different with substance categories. 3. in the classification of the substance according to the size of the particles. Need to find a suitable material to krongonuphak of substances according to different dimensions such as the Beethoven cello bags, filters, etc. 4. substances which are larger than 10-4 cm available in the liquid. The larger it will be clearly visible and easy to sedimentation, which cannot pass through the filter paper both cello and Beethoven. This type of compound that is a suspension. Some types of compound that passes through the filter, but not through a Beethoven cello. Explain how mixed this with a substance that has a particle size less than 10-4 cm larger than 10-7 cm, but the spread is. 5 สารผสมนี้จัดเป็นคอลลอยด์ ส่วนสารผสมที่มีขนาดอนุภาคเล็กกว่า 10-7 cm แพร่กระจายอยู่ ที่ผ่านได้ทั้งกระดาษกรองและเซลโลเฟนนั้นจัดให้เป็นสารละลาย เมื่อฉายแสงผ่านนํ้าโคลน นมสดผสมนํ้า และนํ้าหวาน พบวานมสดผสมนํ้าจะเห็นลำแสงอย่างชัดเจน ส่วนนํ้าโคลนจะทึบแสง และนํ้าหวานสีแดงจะโปร่งใส การที่เราเห็นลำแสงในนมสดได้ เนื่องจากอนุภาคในนมสดจะทำให้แสงกระเจิงไปทุกทิศทางมองเห็นเป็นลำแสง และปรากฏการณ์ที่มองเห็นเป็นลำแสงในคอลลอยด์นี้เรียกว่า ปรากฏการณ์ทินดอลล์ In our daily lives, we are exposed to on a regular basis, such as colloids made salad dressings. The mixture will contain water, oil and egg yolk. If we put only water with oil. 2 this type of different density are not homogeneous are split out the class explicitly. But if they put the egg yolks into the mix. The egg yolks will help keep water and oil combination water, oil and eggs together as a single red meat, which is considered a type of colloid emulsion. The section that allows the egg yolk, water and oil are the same texture emulsifier is classified as a power supplier. Another example of Colloids found regularly, is visible from the beam lamp, the car in front of the car, which caused the air filled with dust. When the light from the lamp in car incident with particles of dust, small size, dispersion is the front of the bus. Born to krachoeng of a light beam is visible. Call this type of Colloids that mist floating solid.
การแปล กรุณารอสักครู่..
