| Acidity measuring system |
Newsday |
16 Mar 2025 |
| Acidic-to-alkaline range |
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| 7 is in the middle of it |
USA Today |
03 Jan 2024 |
| Measurer of acidity |
New York Times |
19 Nov 2023 |
| Bases make up a part of it |
New York Times |
20 Aug 2020 |
| Range in which 7 is neutral |
LA Times Daily |
14 Mar 2020 |
| Range in which 7 is neutral |
The Washington Post |
14 Mar 2020 |
| Range on which 7 denotes neutrality |
The Washington Post |
02 Nov 2018 |
| Range on which 7 denotes neutrality |
LA Times Daily |
02 Nov 2018 |
| It goes from 0 to 14, in chemistry |
New York Times |
10 Jul 2018 |
| Acidity measurement range ... and where you'll find 17-, 23-, 50- and 60-Across? |
LA Times Daily |
28 May 2018 |
| Acidity measurement range ... and where you'll find 17-, 23-, 50- and 60-Across? |
The Washington Post |
28 May 2018 |
| Acidity measurement range ... and where you'll find 17-, 23-, 50- and 60-Across? |
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| It goes from 0 to 14, in chemistry |
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| Range on which 7 denotes neutrality |
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| 7 is in the middle of it |
New York Times |
30 Sep 2017 |
| 7 is in the middle of it |
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| Theme of this puzzle |
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