Question
The specificity of PCR is improved by replacing the bulk solution with one of these mixtures to create billions of droplet-sized compartments. For 10 points each:
[10m] Name these colloids in which both the dispersed and continuous phase are liquids.
ANSWER: emulsions
[10h] In emulsion PCR, the aqueous phase is emulsified inside an organic oil derived from petroleum and described by this adjective. Confusingly, when this adjective precedes the word acid, it means “inorganic.”
ANSWER: mineral [or mineral oil; or mineral acid]
[10e] Standard PCR also sometimes uses mineral oil to prevent sample loss by this process. This phase transition is similar to boiling, but it occurs at lower temperatures and only at the liquid’s surface.
ANSWER: evaporation [or evaporating; prompt on vaporizing or vaporization]
<Adam Silverman, Science - Chemistry> ~23169~ <Editor: Adam Silverman>
Data
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total |
|---|---|---|---|---|---|
| Barrington | Johns Creek A | 0 | 0 | 10 | 10 |
| Belmont | Maggie Walker A | 0 | 0 | 10 | 10 |
| Canyon Crest | Innovation Academy A | 0 | 10 | 10 | 20 |
| Canyon Crest | Innovation Academy A | 0 | 10 | 10 | 20 |
| Canyon Crest | Innovation Academy A | 0 | 10 | 10 | 20 |
| Canyon Crest | Innovation Academy A | 0 | 10 | 10 | 20 |
| Canyon Crest | Thomas Jefferson D | 10 | 10 | 10 | 30 |
| Canyon Crest | Thomas Jefferson D | 10 | 10 | 10 | 30 |
| Canyon Crest | Thomas Jefferson D | 10 | 10 | 10 | 30 |
| Canyon Crest | Thomas Jefferson D | 10 | 10 | 10 | 30 |
| Hunter A | Hoover A | 10 | 0 | 10 | 20 |
| Thomas Jefferson A | Johns Creek A | 10 | 10 | 0 | 20 |
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 6 | 18.33 | 83% | 50% | 50% |