08:02 Jul 8, 2014 |
English language (monolingual) [PRO] Environment & Ecology | |||||||
---|---|---|---|---|---|---|---|
|
| ||||||
| Selected response from: B D Finch France Local time: 03:44 | ||||||
Grading comment
|
SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
---|---|---|---|---|
3 +5 | lime or a substance containing lime |
|
Discussion entries: 2 | |
---|---|
lime or a substance containing lime Explanation: http://en.wikipedia.org/wiki/Lime_(substance) -------------------------------------------------- Note added at 12 mins (2014-07-08 08:15:08 GMT) -------------------------------------------------- www.google.com/patents/US1380700 The amount of iron or other fiuxing [sic] material used will vary, of course, with the particular lime substance used, the amount of iron it contains normally, and varying ... -------------------------------------------------- Note added at 8 days (2014-07-16 15:42:51 GMT) Post-grading -------------------------------------------------- Sorry to disagree with your PM, but given that your text says "lime substance will be found predominantly in water", it's ridiculous to specify that this is slaked lime Ca(OH)2 as it couldn't possibly be quicklime (CaO). The use of the word "substance" means that it is not in solution (lime water). |
| |
Grading comment
| ||