Question

Определите вид волокна по признаку горения Волокно характергорения 1. АцетатА) сгорает полностью с образованием светло-серойзолы, запах жжёнойбумаги.2. ХлопокБ) горит без пламени, с треском, на конце волокна образуется шарик,рассыпающийся при нажатии, запах уксуса3. Шерстьгорит быстро, вне пламени не горит, на конце чёрный спек, запах жженого рога​

Answer 1

Ответ:

1.Б

2.А

3.В

................

Answer 2

Types of Fibers Based on Burning Characteristics

When determining the type of fiber based on its burning characteristics, there are several indicators to consider. Here are the burning characteristics of three types of fibers:

1. Acetate Fiber (A): - Acetate fiber burns completely, leaving behind light gray ash. - It has a smell similar to burning paper. - Source: [[1]]

2. Cotton Fiber (B): - Cotton fiber burns without a flame, producing a crackling sound. - At the end of the fiber, a small ball forms, which crumbles when pressed. - It has a smell similar to vinegar. - Source: [[2]]

3. Wool Fiber: - Wool fiber burns quickly, but it does not continue to burn without a flame. - At the end of the fiber, a black speck forms. - It has a smell similar to burning hair or horn. - Source: [[3]]

Please note that these burning characteristics are generalizations and may vary depending on the specific composition and treatment of the fibers. It is always best to consult the manufacturer or an expert for accurate identification.