1‑propynyllithium reacts with (r, r)‑2,3‑dimethyloxacyclopropane in a stereoselective reaction. Draw a curved arrow mechanism and the missing intermediate and product, clearly showing stereochemistry with a wedge and hashed bond at each stereocenter.

Aresearch institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1085 and x=528 who said “yes”. use 90% confidence level

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions