Question

1)What are sublimable substances?
2)What is seiving?
EXPLAIN IN ATLEAST 75 WORDS​

Answer 1

Explanation:

1.. The substance which changes its state from one to another which is being converted into another is known as sublimable substance. examples: 1)Dry ice. 2)Iodine. 3)Ammonium chloride.

2.... Sieving. Sieving is a simple technique for separating particles of different sizes. A sieve such as used for sifting flour has very small holes. Coarse particles are separated or broken up by grinding against one another and the screen openings. ... Sieves are also used to separate stones from sand.

Answer 2

Answer:

Explanation:

The term sublimation is the passage or the transformation or conversion that substances undergo when passing from one state to another.

1)Dry ice

2)Iodine

3)Ammonium chloride

4) Naphthalene

5) camphor.

Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger impurities remain on the sieve.

And it is used in a flour mill, impurities like husk and stones are removed from wheat before grinding it by sieving.