Round 11: Tossup 2
Reagents containing this metal are coupled with an organohalide in the Kumada reaction. Generally, this metal is always present in Hauser bases, which can form a Schlenk equilibrium with another class of compounds that contain this element. This element and calcium can be extracted from dolomite. This metal is used to reduce titanium tetrachloride in the (*) Kroll process. Along with an organic group and a halogen, Grignard (“GREEN-yarr-d”) reagents possess this element. An ion of this metal appears at the center of chlorophyll's porphyrin ring. Rocks rich in iron and this element are called mafic. For 10 points, name this second lightest alkaline earth metal with symbol Mg. ■END■
ANSWER: magnesium [accept Mg before read]
<Science - Chemistry, Spencer Manning> | VAULT II Packet 11
= Average correct buzzpoint
Buzzes
| Player | Team | Opponent | Buzzpoint | Value |
|---|---|---|---|---|
| Aadi Pudasaini | Lexington A | Belmont B | 38 | 15 |
| Saisabari Ramesh | Waltham B | Lexington B | 52 | -5 |
| Simon Zhang | Lexington B | Waltham B | 53 | 15 |
| Andrew Gao | Belmont A | Waltham A | 61 | 10 |
| Vaanya Ahuja | Mansfield B | Mansfield A | 85 | -5 |
| Shreyas Kandela | Mansfield A | Mansfield B | 107 | 10 |
Summary
| Tournament | Edition | Match | Heard | Conv. % | Power % | Neg % | Avg. Buzz |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✕ | 6 | 100% | 17% | 50% | 79.33 |
| VAULT II at UCSB | 2026-03-13 | ✓ | 4 | 100% | 25% | 0% | 57.50 |
| VAULT II at Harvard | 2026-04-30 | ✓ | 4 | 100% | 50% | 50% | 64.75 |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 100% | 63% | 13% | 47.75 |