[Soda ash knowledge] Daily question (63) 2009.12.05
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Please hide the reply. If you do not hide it, you will not be graded in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Edited posts are not graded. (The title of this issue is taken from page 5 of "Technical Worker Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book is available for download in the soda ash information sharing area. http://bbs.hcbbs.com/thread-13140-1-2.html ) Fill in the blanks 1. The molecular formula of ammonia is ( ), relative molecular mass ( ), and a gas with ( ) odor. 2. Ammonia is easily ( ), so it is a good ( ) agent. 3． Ammonia ( ) water, the aqueous solution is ( ), 1 volume of water can dissolve ( ) volume of ammonia.
1. NH3,17, strong irritant 2. Liquefied, refrigerant 3. Easily soluble in alkali, 1298
1. NH3 17 Strongly irritating 2. Liquefied refrigerant 3. Very soluble in alkali 1298
NH3,17, has a pungent odor and liquefies, the refrigerant is easily soluble in water, alkaline, 700
1. The molecular formula of ammonia is (NH3), the relative molecular mass is (17), and it is a gas with a (strongly pungent) odor. 2. Ammonia is easily (liquefied), so it is a good (refrigerant) agent. 3． Ammonia is (extremely soluble in) water. The aqueous solution is (alkaline). 1 volume of water can dissolve (1298) volume of ammonia. 1#chen3jun
1# chen3jun 1. The molecular formula of ammonia is (NH3), the relative molecular mass is (17), and it is a gas with a (strongly pungent) odor. 2. Ammonia is very easy to (liquefy), so it is a good (refrigerant) agent. 3． Ammonia is (extremely soluble in) water. The aqueous solution is (alkaline). 1 volume of water can dissolve (1298) volume of ammonia.
1. The molecular formula of ammonia is (NH3), the relative molecular mass is (17), and it is a gas with a (strongly pungent) odor. 2. Ammonia is very easy to (liquefy), so it is a good (refrigerant) agent. 3． Ammonia is (extremely soluble in) water. The aqueous solution is (alkaline). 1 volume of water can dissolve (1298) volume of ammonia.
1. NH3,17, strong irritant 2. Liquefied, refrigerant 3. Easily soluble in alkali, 1298
NH3, 17, strongly irritating liquefaction, refrigerant is easily soluble in alkali. 1298 1# chen3jun
1. The molecular formula of ammonia is (NH3), the relative molecular mass is (17), and it is a gas with a (strongly pungent) odor. 2. Ammonia is very easy to (liquefy), so it is a good (refrigerant) agent. 3． Ammonia (extremely soluble in) water, the aqueous solution is (alkaline), 1 volume of water can dissolve (1298) volume of ammonia.
1. The molecular formula of ammonia is (NH3), the relative molecular mass is (17), and it is a gas with a pungent smell. 2. Ammonia is easily (liquefied), so it is a good (refrigerant) agent. 3． Ammonia (easy) water, the aqueous solution is (alkaline), 1 volume of water can dissolve (1298) volume of ammonia.