[Soda ash knowledge] Daily question (59) 2009.12.01
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This post was last edited by chen3jun on 2009-12-1 14:04. Please hide the reply. In principle, no rating will be given if you do not hide it. 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 3 of "Technical Workers 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 main components of table salt are ( ), molecular formula ( ), and relative molecular mass ( ). 3． Sodium chloride ( ) in water. Its solubility is affected by temperature ( ) 4. The solubility of sodium chloride in ammonium chloride solution increases with the concentration of ammonium chloride ( ).
1. Sodium chloride, NaCl, 58.5； 3. Easily soluble, not too big ； 4. lower
1. Sodium chloride, NaCl, 58.5 3. Easily soluble in, not much 4. Reduced
1. Sodium chloride, NaCl, 58.5 2. Regular hexahedron, deliquescent 3. Easily soluble in water, not much 4. Decreased
1. Sodium chloride, NaCl, 58.5 3. Easily soluble in, not much 4. Reduced
1 Sodium chloride, NaCl, 58.5 3 Easily soluble, not much 4 Reduce 1# chen3jun
1. Sodium chloride, NaCl, 58.5 3. Soluble in water, large 4. Unchanged 1# chen3jun
1. The main component of table salt is (sodium chloride), molecular formula (NaCl,), and relative molecular mass (58.5). 3. Sodium chloride (easily soluble) in water. Its solubility is affected by temperature (not much) 4. The solubility of sodium chloride in ammonium chloride solution (decreases) as the concentration of ammonium chloride increases. 1#chen3jun
1. The main component of table salt is (sodium chloride), molecular formula (NaCl), and relative molecular mass (58.5). 3． Sodium chloride (dissolved) in water. Its solubility is affected by temperature (solubility increases as temperature increases) 4. The solubility of sodium chloride in ammonium chloride solution decreases as the concentration of ammonium chloride increases (decreases
1. The main component of table salt is (sodium chloride), molecular formula (NaCl), and relative molecular mass (58.5). 3． Sodium chloride (easily soluble) in water. Its solubility is affected by temperature (not much) 4. The solubility of sodium chloride in ammonium chloride solution increases (decreases) as the concentration of ammonium chloride increases.
Didn't see question 21. Sodium chloride NaCl 58.5 3. Easily soluble in less than 4. reduce